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Ivander Juahta; Ujuh Juhana

International Journal of Law, Crime and Justice 2026 Asosiasi Penelitian dan Pengajar Ilmu Hukum Indonesia

The enactment of Indonesia's Law Number 20 of 2025 on the Code of Criminal Procedure (KUHAP 2025), effective January 2, 2026, introduces a paradigmatic shift in the coordination between investigators and public prosecutors: Article 58 mandates active coordination from the investigation stage, fundamentally departing from the sequential-passive model of the former KUHAP, while Article 70 imposes a strict seven-day deadline for indictment drafting after case files are declared complete. This study examines two interconnected questions: (1) how the legal framework governing investigator–prosecutor coordination is structured under KUHAP 2025 and related legislation; and (2) how that framework is implemented in practice at the Purwakarta District Prosecutor's Office. A normative–empirical mixed-method design was employed, integrating statutory, conceptual, and case-study approaches. Data were gathered through in-depth interviews with prosecutors and investigators at Purwakarta District Prosecutor's Office and Purwakarta Police Resort, case document analysis, and field observation. The theoretical framework combines Lawrence M. Friedman's Legal System Theory and Soerjono Soekanto's Law Enforcement Theory. Findings reveal that KUHAP 2025 delivers substantial normative advancement yet harbours three critical regulatory gaps: the absence of binding technical protocols for implementing mandatory active coordination, the lack of uniform and measurable case-file completeness standards, and no formal mechanism for resolving institutional disagreements on legal interpretation. On the ground, coordination at Purwakarta still operates under the old sequential-passive pattern despite the new law: case-file returns (P-19) remain frequent, driven primarily by absent expert testimony, insufficient factual narration in examination records, and mismatches between charged articles and legal facts. A Friedman–Soekanto diagnostic reveals simultaneous dysfunction across all three legal system components substance, structure, and legal culture with the entrenched 'waiting culture' between the police and the prosecution identified as the most resistant obstacle to reform.

Suroto; Suroto; Sri Pujiarti, Emiliana; Wibowo, Agung; Haryanti, Caecilia Sri +2 more

Perigel: Jurnal Penyuluhan Masyarakat Indonesia 2026 Universitas 17 Agustus 1945 Semarang

A feasibility study is a critical stage in the planning of hospital establishment to ensure investment viability, particularly from a financial perspective. This community service program aims to provide reinforcement in the preparation of a feasibility study for the establishment of a Regional Public Hospital (RSUD) in Barukan Village, Tengaran District, Semarang Regency, through financial feasibility analysis conducted by financial experts. The implementation method was carried out through partner needs identification, delivery of financial analysis materials, interactive discussions, and assistance in developing financial models encompassing cash flow projections, discounted payback period (DPP), net present value (NPV), internal rate of return (IRR), and sensitivity analysis, all of which yielded feasible and acceptable results. The outcomes of the activity demonstrated an improvement in partners' understanding of financial feasibility analysis as well as their ability to interpret investment assessment criteria. In addition, the activity yielded an early-stage draft encompassing the financial feasibility aspects, which is intended to guide stakeholders in making informed decisions related to the founding of the Semarang Regency Regional Public Hospital. This activity contributes to strengthening the planning of healthcare facility investment in an effective and sustainable manner.

Isna Wati; Yessica Amelia; Ruslaini Ruslaini

Journal of Management and Social Sciences (JIMAS) 2026 Sekolah Tinggi Ilmu Administrasi (STIA) Yappi Makassar

This study aims to examine the influence of capital intensity,  Return on Assets (ROA), liquidity, and company size on the Cash Effective Tax Rate (CETR) as a proxy for tax avoidance in energy sector companies listed on the Indonesia Stock Exchange for the 2020–2024 period. This study uses a quantitative approach with secondary data in the form of annual financial statements. The sample was determined using a purposive sampling technique and obtained 16 companies during five years of observation, resulting in 80 observation data. Data analysis was carried out using multiple linear regression with the help of SPSS 29 software. The analysis stage began with a classical assumption test, then continued with multiple linear regression analysis, as well as hypothesis testing. The results showed that partially capital intensity and ROA had a significant effect on CETR, while liquidity and company size had no significant effect on CETR. Simultaneously, all independent variables had a significant effect on CETR, with a determination coefficient value of 25%.

Hari Sriwijayanti; Shinta Bella; Nike Apriyanti

Journal of Management and Social Sciences (JIMAS) 2026 Sekolah Tinggi Ilmu Administrasi (STIA) Yappi Makassar

This study aims to analyze the role of online sales in maintaining the financial stability of Micro, Small, and Medium Enterprises (MSMEs) in West Sumatra, Indonesia. The increasing adoption of digital channels, such as marketplaces, social media, messaging applications, live selling, and digital payment systems, has transformed online sales into not only marketing tools but also mechanisms that may affect cash flow continuity and business sustainability. Despite their growing importance, empirical evidence regarding the contribution of online sales to MSME financial stability remains limited. This study employs a quantitative explanatory research design. The population consists of MSME owners in West Sumatra who utilize online sales, while purposive sampling was used to select respondents who had engaged in online selling for at least one year and maintained cash flow records. Data were collected from 102 respondents through a structured questionnaire using a five-point Likert scale and analyzed using Partial Least Squares-Structural Equation Modeling (PLS-SEM). The findings reveal that online sales have a positive and significant effect on financial stability, with a path coefficient of 0.632, a t-value of 9.214, and a p-value below 0.001. These results indicate that effective use of online sales enhances cash flow continuity, income regularity, working capital adequacy, and financial resilience. However, the benefits depend on disciplined management of digital costs, discounts, platform fees, shipping expenses, product returns, and cash flow records. This study contributes to MSME digitalization literature by highlighting online sales as a strategic instrument for strengthening financial stability rather than merely a marketing channel.

Elia Rossa; Nurasia Natsir

International Journal of Management and Strategic Business Leadership 2026 Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

This study investigates the effect of total risk on firm performance and sustained growth among consumer non-cyclicals manufacturing companies listed on the Indonesia Stock Exchange (IDX) over the period 2019–2023. Total risk is operationalized through the systematic risk proxy (Beta/β), estimated via the Capital Asset Pricing Model (CAPM) framework as the covariance between individual stock returns and the market return divided by the variance of market returns, using the Jakarta Composite Index (JCI) as the market benchmark. Firm performance is measured through Return on Assets (ROA), Return on Equity (ROE), and Tobin’s Q, while sustained growth is operationalized following Gerson et al. (2025) as SG = b × ROE, where b denotes the earnings retention ratio. Panel data regression analysis is applied to 225 firm-year observations drawn from 45 companies, with model selection guided by the Chow and Hausman specification tests. The Fixed Effect Model (FEM) is adopted for ROA, ROE, and SG, while the Random Effect Model (REM) is applied for Tobin’s Q. Results indicate that systematic risk exerts a significant negative effect on ROA (β = −0.312; p < 0.01) and ROE (β = −0.278; p < 0.01), but is statistically non-significant for Tobin’s Q, suggesting that capital market pricing in Indonesia does not fully incorporate systematic risk information. Critically, systematic risk exerts the largest and most significant negative effect on sustained growth (β = −0.347; p < 0.01), revealing a dual transmission mechanism through which risk suppresses ROE while simultaneously inducing more conservative dividend policies, both of which constrain long-run growth sustainability. These findings carry important implications for corporate risk management strategy and empirically enrich the literature on risk, performance, and growth in emerging capital markets.

Finsensius Mbabho; Muhammad Muhammad; Ismawandi Bripandika Putra; Angga Indra Kusuma; Yuni Fitriyah Ningsih

Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial 2026 Asosiasi Riset Ilmu Pendidikan Indonesia

This study aims to analyze the comparison of students' physical fitness during the COVID-19 pandemic and after the pandemic based on VO2 Max values. The research sample amounted to 100 students who had physical fitness data in two observation periods, namely during the pandemic and after the pandemic. Fitness measurements were carried out using the Beep Test (Multi-Stage Fitness Test / MSFT) to obtain a VO2 Max value. The results of the study showed that the average VO2 Max of students during the pandemic was 35 ml/kg/minute, while after the pandemic it increased to 42 ml/kg/minute. An increase of 7 ml/kg/min indicates a recovery in the student's aerobic capacity after returning to normal physical activity. Students who remained active in exercise during the pandemic showed better levels of fitness than students who did little physical activity. In addition, psychological factors, social support, and the availability of sports facilities also affect changes in students' physical fitness. Thus, the COVID-19 pandemic has been proven to have an impact on the decline in students' physical fitness, but these conditions can be restored through increased physical activity, environmental support, and structured physical education programs in the post-pandemic period.

Oktavia Gundisalvus Dua Raha; Oktavia Gundisalvus Dua Raha; Andreas Rengga; Cicilia Ayu Wulandari Nuwa

Jurnal Projemen UNIPA 2026 Universitas Nusa Nipa Maumere

The background of this study was the fluctuation in net profit and the changes in current assets and current liabilities, which indicated an imbalance in the management of working capital at PT Hanjaya Mandala Sampoerna Tbk during the 2020–2024 period). This study aimed to analyze the company's working capital and profitability, which were measured using the Gross Profit Margin (GPM), Net Profit Margin (NPM), Return on Assets (ROA), and Return on Equity (ROE) ratios. This study employed a descriptive research design with a quantitative approach.. The data consisted of the company's financial statements for the 2020–2024 period, which were obtained from the Indonesia Stock Exchange and the company's official website.. The results showed that the company's working capital remained positive but tended to decline, indicating a less favorable condition . The company's profitability was generally categorized as good, although the Gross Profit Margin was still considered less satisfactory.

Elia Rossa; Nurasia Natsir

International Journal of Economics and Management Sciences 2026 Asosiasi Riset Ekonomi dan Akuntansi Indonesia

This study examines the effect of working capital on firm performance and sustained growth among consumer non-cyclicals manufacturing companies listed on the Indonesia Stock Exchange (IDX) over the period 2019–2023. Working capital is operationalized through three distinct proxies derived from Akgün and Memiş Karatəs (2021): the Cash Holding Level (CHL), which measures the proportion of cash and cash equivalents relative to total assets; the Cash Interactive Effect (CIE), which captures the efficiency of converting revenue into operating cash flow; and the Gross Working Capital Ratio (GWCR), which reflects the share of current assets within total assets. Firm performance is assessed through Return on Assets (ROA), Return on Equity (ROE), and Tobin’s Q, while sustained growth is measured using the model proposed by Gerson et al. (2025), expressed as SG = b × ROE, where b denotes the earnings retention ratio. Panel data regression analysis is applied to 225 firm-year observations drawn from 45 companies. The study employs the Fixed Effect Model (FEM) for ROA and ROE, and the Random Effect Model (REM) for Tobin’s Q, as determined by the Hausman specification test. The findings reveal that CHL and CIE exert significant positive effects on ROA and ROE, while CIE is the only proxy to produce a statistically significant positive effect on Tobin’s Q. With respect to sustained growth, CHL and GWCR demonstrate significant negative effects, whereas CIE shows a significant positive effect, indicating that operational efficiency dimensions of working capital actively support long-term growth sustainability. These results reinforce the liquidity management theory and contribute empirical evidence that the structure and efficiency of working capital are strategic determinants of both short-term financial performance and long-term growth sustainability in Indonesia’s consumer goods manufacturing sector.

Kurniadi, Wandi; Sofiati, Evi

Journal of Business Innovation 2026 Seoul Publisher

The expansion of micro, small, and medium enterprises (MSMEs) in the food service sector presents a significant opportunity to simultaneously advance entrepreneurial development and address food security challenges among Indonesia’s urban population. This study conducts a comprehensive feasibility assessment of an MSME-based ready-to-eat (RTE) food security catering business, evaluating its viability across five dimensions: market, technical, organizational, financial, and social-environmental feasibility. A descriptive-quantitative research design was employed, incorporating primary data collected from 200 prospective consumers and five MSME catering operators in the Bandung metropolitan area, supplemented by secondary data from industry reports and government statistics. Financial feasibility was evaluated using Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period (PP), and Benefit-Cost Ratio (BCR) analyses over a five-year projection horizon. Results indicate strong market demand, with 82.5% of surveyed consumers expressing interest in subscribing to healthy RTE catering services. Financial projections reveal a positive NPV of IDR 127,450,000, an IRR of 38.7% exceeding the cost of capital at 12%, a payback period of 2.4 years, and a BCR of 1.82, collectively affirming financial viability. The study concludes that an MSME-based RTE food security catering business is feasible and commercially promising, with important implications for MSME development policy, food security programs, and entrepreneurship support frameworks in Indonesia.

Ricardo Parulian Sibagariang; Andri Zainal; Jufri Darma; Chandra Situmeang; Arfan Ikhsan +1 more

JURNAL RISET AKUNTANSI 2026 Institut Teknologi dan Bisnis (ITB) Semarang

The banking sector faces dual challenges from economic turbulence and the implementation of expected credit loss accounting standards. An empirical anomaly has emerged where large-scale banks remain aggressive in distributing dividends despite soaring provisioning burdens, while medium-scale banks tend to retain earnings. This research aims to analyze the effect of capital buffer and firm size on dividend distribution decisions, while examining the ability of allowance for impairment losses to moderate these interactions. Utilizing a causal explanatory panel data design, this study observed 15 banking entities on the Indonesia Stock Exchange from 2020 to 2024. Data analysis was conducted using the Tobit regression model to accommodate dividend data characteristics left-censored at zero. Results prove that the capital buffer has no significant effect on dividend decisions, confirming the conservative posture of banks in prioritizing capital retention as a risk cushion. Conversely, firm size significantly determines profit distribution policy positively. In the moderation test, allowance for impairment losses does not moderate the capital buffer-dividend relationship but significantly moderates and amplifies the positive effect of firm size on dividend decisions. These findings imply a strategic resilience signaling maneuver, where large banks respond to high provisioning by expanding cash distribution to prove fundamental robustness to the market. Practically, this study recommends investors prioritize large-scale banks for stable returns and provides insights for regulators regarding the urgency of more adaptive regulatory adjustments.

Marshanda Putri Firdaus; Chicha Kurnianingrum; Indi Salwa Zahrina

Master Manajemen 2026 Fakultas Ekonomi & Bisnis, Universitas Nusa Nipa

This study is based on the increasingly rapid development of the knowledge-based economy, where human capital is now regarded as one of the important assets in creating a company’s competitive advantage, especially in the energy and oil and gas sectors in Indonesia. This study aims to determine the effect of human capital and labor intensity on corporate financial performance, which is proxied by Return on Assets (ROA) during the 2021–2024 period. The research method used is a quantitative approach with multiple linear regression analysis. The research data were obtained from sample companies selected using a purposive sampling technique. The results of the study show that human capital, proxied by Value Added Human Capital (VAHU), has a positive and significant effect on corporate financial performance. These findings indicate that good human resource management is capable of increasing the company’s profitability level. On the other hand, labor intensity is proven to have a negative and significant effect on financial performance. This indicates that a high level of company dependence on labor, without being balanced by operational efficiency, can reduce the company’s ability to generate profits. In addition, simultaneously both variables are able to explain 74.5% of the variation in Return on Assets (ROA), so it can be concluded that human capital and labor intensity have a considerable contribution to corporate financial performance. Based on these results, companies need to prioritize improving the quality and competence of the workforce rather than merely focusing on increasing the number of employees. This step is important to maintain the stability of corporate financial performance in the post-pandemic era. In addition, companies also need to effectively control labor costs so that a decline in net profit margins can be avoided.

Mariska Putri Tarigan; Fitrini Mansur; Muhammad Gowon

JURNAL RISET AKUNTANSI 2026 Institut Teknologi dan Bisnis (ITB) Semarang

This study aims to determine the effect of ESG Disclosure, Environmental Performance, and Environmental Costs on the Negative Net Profit Margin (NPM) of Energy Sector Companies Listed on the Indonesia Stock Exchange for the 2022-2024 Period. The data used in this study consists of secondary data obtained from annual reports and company sustainability reports. The analysis tool used is SPSS 31 software to view the results partially and simultaneously. The results show that ESG Disclosure does not affect Net Profit Margin (NPM). Likewise, environmental performance does not show a effect on Net Profit Margin (NPM). Meanwhile, environmental costs show an negative effect on Net Profit Margin (NPM). Simultaneously, ESG disclosure, environmental performance, and environmental costs have a negative effect on Net Profit Margin (NPM). The results show that when environmental costs are high, the Net Profit Margin (NPM) value decreases, and vice versa. Meanwhile, ESG disclosure and environmental performance do not have a significant impact on Net Profit Margin (NPM). This research contributes to company management and stakeholders in understanding the impact of environmental costs on profitability as reflected in the Net Profit Margin (NPM) return on assets ratio and provides insight in decision making.

Anggun Fitrah Sari; Ade Widiyanti; Ratna Septiyanti; Sari Indah Oktanti

Jurnal Ekonomi, Akuntansi, dan Perpajakan 2026 Asosiasi Riset Ekonomi dan Akuntansi Indonesia

The purpose of this study is to examine the effect of Good Corporate Governance (GCG), financial performance, and Earning Per Share (EPS) on firm value. The object of this research consists of state-owned enterprises (SOEs) listed on the Indonesia Stock Exchange during the period of 2021–2024. This study employs a quantitative approach using secondary data in the form of annual financial statements as the primary source. The sample was selected using purposive sampling based on predetermined criteria, ensuring that only companies with complete data and consistent reporting were included in the analysis. The independent variables analyzed include the audit committee, independent commissioners, institutional ownership, Return on Assets (ROA), and Earning Per Share (EPS). Multiple linear regression analysis was used to process the data in this study, allowing the researchers to examine the simultaneous and partial effects of the variables on firm value. The findings indicate that firm value is significantly influenced by financial performance, particularly ROA, highlighting the importance of operational efficiency and profitability in enhancing shareholder wealth. While certain GCG variables such as institutional ownership showed positive influence, other elements like audit committees and independent commissioners produced mixed results, suggesting that governance mechanisms may have varying effects depending on organizational context. Meanwhile, EPS demonstrated inconsistent results in relation to firm value, implying that market perceptions of earnings may not fully capture the impact on overall firm valuation. This study provides insights for policymakers, investors, and corporate managers on the relative importance of governance and financial indicators in value creation for state-owned enterprises.

Fitriana Wijaya

Karakter : Jurnal Riset Ilmu Pendidikan Islam 2026 Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

Knowledge should not only make human beings intellectually capable, but also guide them to understand the meaning and direction of life. However, in modern education, knowledge is often reduced to an instrument for obtaining grades, degrees, employment, and material success. This condition indicates a crisis of meaning in education, where knowledge grows rapidly but is not always followed by moral awareness and spiritual maturity. This article examines the Philosophy of Unity of Sciences as an alternative paradigm to restore the meaning of knowledge in modern education. This study uses library research with a descriptive-critical approach. The primary sources include the Qur’an, Hadith, Al-Ghazali’s Iḥyā’ ‘Ulūm Al-Dīn, Syed Muhammad Naquib Al-Attas’ Islam and Secularism, and the Javanese ethical text Serat Wedhatama. This article is also strengthened by the thoughts of Muslim scholars such as Al-Kindi, Al-Farabi, Ibn Sina, Al-Biruni, Ibn Al-Haytham, Al-Khawarizmi, and Ibn Khaldun. The result of this study shows that the Philosophy of Unity of Sciences views all knowledge as originating from Allah. Therefore, religious knowledge and general knowledge should not be separated or opposed to each other. Both should work together to form human beings who are faithful, rational, ethical, and responsible. In this sense, knowledge can be understood as “a way home”, namely a way to return to God, to the self, to humanity, and to nature.

Rani Cahyati; Ratna Septiyanti

Eksekusi: Jurnal Ilmu Hukum dan Administrasi Negara 2026 Sekolah Tinggi Ilmu Administrasi (STIA) Yappi Makassar

This study analyzes the obstacles in fulfilling the proof of deposit for Final Income Tax (PPh Final) as a requirement for land certificate name transfer at the Land Office of Bandar Lampung City. These obstacles impact legal uncertainty regarding land ownership and slow down public services. The research employs a descriptive analytical method with a qualitative approach. Data were collected through in-depth interviews with counter officers, verifiers, and the Land Rights Determination and Registration section, as well as direct observation and documentation at the local office. The findings identify three main classifications of obstacles. First, technical obstacles include payment data not being readable in the Land Office Computerization System (KKP) and barcodes on tax clearance certificates being unreadable. Second, administrative obstacles encompass data mismatches (nominal amounts, identities, Tax Object Numbers) and incomplete documents. Third, document-related obstacles include poor-quality photocopies and discrepancies in tax dates or years. Contributing factors are data entry errors (human error), lack of thoroughness, integration issues between the KKP system and the tax system, as well as taxpayers' low technical understanding. The consequences include process delays, re-verification with the tax office, and document returns. This study concludes that system-related obstacles, particularly the lack of optimal integration, are dominant. Recommended improvements include integrating the KKP system with the Directorate General of Taxes, enhancing automatic validation, simplifying validation procedures at the tax office, and increasing tax literacy among taxpayers.

Akbarudin Akbarudin; Mohamad Safii

Maeswara : Jurnal Riset Ilmu Manajemen dan Kewirausahaan 2026 Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

This study aims to analyze the effect of Good Corporate Governance (GCG), Firm Size, and Sales Growth on Financial Performance at PT Ace Hardware Indonesia Tbk listed on the Indonesia Stock Exchange (IDX) during the 2015–2024 period. Good Corporate Governance (GCG) in this study is proxied by institutional ownership, financial performance is measured using Return on Assets (ROA), firm size is measured by the natural logarithm of total assets, and sales growth is measured using the sales growth ratio. This study employed a quantitative method with a descriptive approach. The data used were secondary data in the form of annual financial statements obtained from the official websites of the IDX and the company. Data analysis techniques included descriptive statistics, classical assumption tests, multiple and simple linear regression analysis, and hypothesis testing consisting of t-test, F-test, and coefficient of determination with the assistance of SPSS version 27 software. The results of the study indicate that partially, the Good Corporate Governance (GCG) variable has a t-value of -1.526 < t-table 2.447, meaning that it has no significant effect on financial performance. The firm size variable has a t-value of -2.857 > t-table 2.447, indicating a significant negative effect on the company’s financial performance. The sales growth variable has a t-value of 1.593 < t-table 2.447, meaning that it has no significant effect on financial performance. Simultaneously, Good Corporate Governance (GCG), firm size, and sales growth have a significant effect on financial performance, with an F-value of 13.023 > F-table 4.76 and a significance value of 0.005 < 0.05. This study is expected to provide consideration for management and investors in decision-making and serve as a reference for future research in related fields.

Chessi Adeliya Simatupang; Dinda Syufradian Putra; Azira Novia Rizal

WISSEN : Jurnal Ilmu Sosial dan Humaniora 2026 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

This research is motivated by the complex problems of street children, vagrants, and beggars in Jambi City, which are influenced by poverty, urbanization, and weak social protection. This phenomenon not only impacts public order but also reflects the suboptimal social welfare system at the regional level. Although local governments have implemented various policies through social order and rehabilitation approaches, their effectiveness still faces various structural and cultural challenges. This study uses Bryson's Policy Implementation Mapping theoretical framework, which includes indicators of interests, resources, channels, potential participation, level of influence, implications, and actions as the main analysis. The research approach used is a qualitative case study design to understand the dynamics of policy implementation in depth. Data collection techniques were carried out through in-depth interviews, participant observation, and documentation, with informants selected using purposive sampling until data saturation was achieved. The results show that policy implementation mapping has been carried out through collaboration between the Social Service and the Public Order Agency (Satpol PP) with a structured preventive, repressive, and rehabilitative approach. However, implementation has not been optimal due to limited rehabilitation facilities, lack of coordination between agencies, low community participation, and high mobility of beggars from outside the region. Furthermore, there is a gap between high administrative achievements and the reality on the ground, which still shows a high rate of returning to the streets. This study concludes that mapping policy implementation requires a more holistic, sustainable approach based on economic empowerment and strengthened cross-sectoral coordination to address this social issue more effectively and effectively.

Widya Sari, Ida Ayu Artha; Harta Mimba, Ni Putu Sri

JURNAL RISET AKUNTANSI 2026 Institut Teknologi dan Bisnis (ITB) Semarang

This study compares the Single Index Model and the Black-Litterman model in forming an optimal stock portfolio on a fixed sample of recurrent IDX30 constituents in order to assess differences in portfolio composition, return, risk, and risk-adjusted performance in the Indonesian capital market. This study compares the Single Index Model and the Black-Litterman model in forming an optimal stock portfolio on a fixed sample of recurrent IDX30 constituents in order to assess differences in portfolio composition, return, risk, and risk-adjusted performance in the Indonesian capital market. The Single Index Model produced a more diversified 9-stock portfolio and the stronger Sharpe ratio, while the Black-Litterman model produced a more concentrated 3-stock portfolio with higher expected return, higher Treynor ratio, and higher Jensen’s alpha. The results indicate that no single model dominates on all criteria. The Single Index Model is more favorable from the perspective of total-risk-adjusted efficiency, whereas the Black-Litterman model is more favorable from the perspective of return orientation and systematic-risk-adjusted performance. Future research should strengthen the economic justification of investor views and expand the benchmark comparison to broader Indonesian stock universes..

Tazakka Pribadi, Fadhil; Intan Surya Saputra, Dhanar

Saturnus: Jurnal Teknologi dan Sistem Informasi 2026 Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Libraries play a crucial role in broadening the public's knowledge horizons by improving literacy skills. However, the reality at the Samaturu Library in Jambu Malea Village shows that manual management still dominates, leading to various administrative obstacles such as data irregularities, the risk of losing important information, and inefficiencies in tracking daily activities. This condition demands digital transformation to optimize public services at the village level comprehensively and sustainably. This research focuses on the development of a web-based library information system specifically designed to modernize administrative processes to be more systematic, fast, and organized. Built using the PHP programming language and MySQL database, this platform offers an intuitive interface for both staff and members. Its superior features include book data management, membership, activity agendas, announcements, and digitizing the borrowing and return process. Furthermore, the system is capable of automatically generating periodic reports to facilitate library performance evaluation. Based on the results of comprehensive testing using the Black Box Testing method, all system functionality was proven to operate optimally according to the required specifications. Direct user trials also showed very positive responses regarding aspects of ease of navigation and operational time efficiency. The implementation of this system is expected to improve the effectiveness of internal management, accelerate the quality of services to library users, and become a major catalyst in realizing superior digital literacy governance in rural areas.

Pratama Suhendro; Roza Fitriawati

Riset Ilmu Manajemen Bisnis dan Akuntansi 2026 Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

This study aims to analyze the effect of Return on Asset (ROA), Current Ratio (CR), Net Profit Margin (NPM), and Total Asset Turnover (TATO) on company value as measured by Price Book Value (PBV) in property and real estate sector companies listed on the Indonesia Stock Exchange for the 2019–2023 period. This research adopts a quantitative method with a causal associative approach. The data was obtained from the financial reports of eight companies that met the purposive sampling criteria. Data analysis was conducted using multiple linear regression with the help of SPSS software. The results show that, partially, ROA and CR have a significant negative effect on PBV, while NPM does not have a significant effect on PBV, and TATO has a significant negative effect on PBV. Simultaneously, all four independent variables significantly affect PBV, with an R² value of 12.3%, indicating that most of the PBV variations are explained by other factors outside the research model. These findings provide insights for investors and company management regarding the importance of asset management and operational efficiency in enhancing firm market value.