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This study discusses the leadership values reflected in the folklore of Panglima Wangkang in Marabahan as a representation of the local wisdom of the Banjar-Bakumpai community. Panglima Wangkang is recognized as a prominent figure who played a significant role in resisting Dutch colonialism in the Barito region. This research aims to examine Panglima Wangkang not only as a war hero but also as a symbol of cultural unity, religious values, and traditional leadership that still lives in the collective memory of society today. The study employs a qualitative historical method with a postcolonial approach. The data were collected through library research involving historical archives, scientific journals, books, and documented folklore. The research stages included heuristics, source criticism, interpretation, and historiography. The findings reveal that Panglima Wangkang’s leadership reflects the values of courage, strategic intelligence, loyalty, religiosity, and social concern. His well-known military strategy, referred to as the “Trojan Horse” technique, demonstrates his tactical ability in confronting colonial forces. In addition, religious values are reflected in his message to always maintain ablution and in the belief regarding martyrdom. The story of the golden bullet also symbolizes the community’s respect for the struggle and honor of local heroes. Panglima Wangkang’s cross-ethnic identity as both Banjar and Bakumpai further strengthened community unity in facing colonialism. This study shows that folklore functions not only as a cultural heritage but also as a medium for transmitting leadership values and local identity that remain relevant in the social life of the Marabahan community today.

Surau is the oldest traditional Islamic educational institution in Minangkabau and played an important role in the development of Islamic education in Indonesia before the twentieth century. This study is motivated by the modern shift in understanding the function of surau, which is often viewed merely as a place of worship, whereas historically it possessed broader educational, social, and cultural functions. The research aims to analyze the origins and transformation of surau, identify the roles of influential figures in its development, and examine its social functions within Minangkabau society. This study employs a qualitative approach using the historical research method through library research based on various primary and secondary sources. Data analysis was conducted through the stages of heuristics, source criticism, interpretation, and historiography to produce a systematic and factual historical account. The findings reveal that surau transformed from a Hindu-Buddhist ritual center into an Islamic educational institution that functioned as a center for religious instruction, character building, intellectual development, and social integration. Figures such as Syekh Burhanuddin Ulakan, Tuanku Nan Tuo, and Syekh Muhammad Djamil Djambek made significant contributions to the reform and development of the surau educational system. In addition, surau also served as a center for community deliberation, a residence for young men, and a space for moral and cultural development. The study implies that surau became an important foundation in shaping the Islamic educational system in the Nusantara by harmoniously integrating religious values, local culture, and social life.

This study aims to examine the contributions of A.M. Sangaji to the field of education during the period of 1922–1949 within the broader context of anti-colonial struggle. This research employs a qualitative method with a historical approach, involving the stages of heuristics, verification, interpretation, and historiography. Data sources are derived from library research, including books, scholarly articles, and relevant historical documents. The findings reveal that A.M. Sangaji’s contributions to education were closely intertwined with his political and social activism within Sarekat Islam. He actively established Qur’anic teaching centers and educational institutions, particularly in East Kalimantan, aimed at enhancing intellectual and religious awareness among indigenous communities. Furthermore, his role as a writer and orator significantly influenced the development of national consciousness and resistance against colonial rule. His integrity, ideas, and commitment to education highlight his substantial role in the history of Indonesian education. This study concludes that A.M. Sangaji’s contributions extended beyond formal education to encompass social, political, and religious education oriented toward the liberation of society from colonial oppression. Therefore, A.M. Sangaji deserves recognition as both an educational figure and a national hero, with enduring relevance for contemporary educational development.

This research is entitled The Influence of Japanese Pop Culture on Children’s Toys Trends in Indonesia, 1980-2010. The study employs the historical method, which consists of four stages: heuristics, source criticism, interpretation, and historiography.John Fiske’s (2011) theory of popular culture and  Joseph Nye’s concept of soft power is used to analyze how Japanese popular culture, particularly through entertainment media and toy products, was disseminated persuasively and received by Indonesian children. Since the early 1990s, mass media such as television and children’s magazines have played an important role in introducing Japanese anime and characters, which subsequently encouraged the emergence of toy trends based on Japanese popular culture. The object of this research focuses on children’s toys influenced by Japanese popular culture that circulated in Indonesia between 1980 and 2010, including Tamiya, Beyblade, Tamagotchi, Crush Gear, B-Daman, and yo-yo. These toys not only developed as commercial products, but also contributed to the formation of children’s play patterns, communities, and social identities. However, during the period from 2008 to 2010, these toy trends began to decline due to the advancement of digital technology, changes in children’s consumption patterns, broadcast censorship policies implemented by Indonesian Broadcasting Commission (KPI), and increasing competition from popular culture of other countries such as Korea, the United States, and China. This condition reflects a shift in children’s play culture from physical toys to more modern forms of digital entertainment.

The tomb of Ario Damar in Palembang City represents one of the important historical sites for understanding the political, social, and religious dynamics during the transitional period from the influence of the Majapahit Kingdom to the development of Islam in the South Sumatra region. The study of this site employs the historical method through the stages of heuristics, source criticism, interpretation, and historiography, using a qualitative approach. Data were collected through direct observation of the Ario Damar tomb complex and literature studies derived from scientific journals, academic articles, and relevant historiographical works. The analysis indicates that the existence of the Ario Damar tomb not only represents a physical relic of a prominent figure within the governmental structure of Palembang in the fifteenth century but also serves as material evidence reflecting the process of cultural and religious transformation in the region. The tomb site demonstrates historical connections between the political authority of Majapahit, the early development of Islam in Palembang, and the political and cultural relations between Java and Sumatra. In addition to its historical significance, the Ario Damar tomb also holds social and cultural functions as a space of collective memory for the community, which continues to be used as a site of pilgrimage and historical reflection. Therefore, the preservation of the Ario Damar tomb site is essential to maintain cultural heritage while strengthening its role as a source of local historical learning and the development of sustainable historical tourism.

This study examines the impact of Dutch Military Aggression I (1947) and Dutch Military Aggression II (1948–1949) on the political development of Indonesia during the early years of independence. Employing the historical method (heuristics, source criticism, interpretation, and historiography) and a qualitative diachronic-synchronic approach, the research analyses primary and secondary sources concerning internal political dynamics and the Republic of Indonesia’s international relations in the period 1947–1949. The findings reveal that both Dutch military aggressions paradoxically served as crucial catalysts for the acceleration of national political consolidation and maturation in Indonesia. The First Aggression triggered international condemnation, transformed the Republic’s status from “rebels” to a sovereign state defending its independence, strengthened national solidarity, and gave birth to the integration of armed struggle and diplomacy—the precursor to the Total People’s Defense doctrine. Meanwhile, the Second Aggression, marked by the occupation of Yogyakarta and the arrest of republican leaders, led to the establishment of the Emergency Government of the Republic of Indonesia (PDRI), closer civil-military coordination, unification of political parties and societal organizations, and heightened global pressure that ultimately resulted in the recognition of sovereignty in 1949. Overall, Dutch military pressure expedited the transformation of political structures, bolstered the legitimacy of the Republican government, and secured both de facto and de jure recognition of Indonesian independence.

The development of Islamic Religious Education in Banjar Land represents a long historical process marked by social, political, and religious transformations. Since the era of traditional da‘wah conducted by ulama through halaqah, surau-based instruction, and religious study circles (majelis taklim), the Islamic education system in this region has continuously evolved, eventually giving rise to formal educational institutions such as madrasahs and Islamic-based schools. This study aims to chronologically describe these historical dynamics, examine the factors influencing educational change, and analyze the roles of ulama, the Banjar Sultanate, and community institutions in the transformation of Islamic education. The research employs a qualitative method with a historical approach, involving the stages of heuristics, source criticism, interpretation, and historiography. Data were collected from scholarly literature, local manuscripts, and the works of Banjar ulama. The findings indicate that the transformation of Islamic education in Banjar Land, from the period of Islamization to the emergence of madrasahs and Islamic Religious Education in public schools, occurred through at least three major phases: (1) family- and community-based traditional da‘wah through langgar (prayer houses) and halaqah institutions; (2) the establishment of modern madrasahs in the twentieth century as a response to colonialism and modernity; and (3) the integration of Islamic education into the formal national education system in the post-independence era. This study affirms that Islamic education in Banjar Land possesses distinctive characteristics, is adaptive in nature, and is deeply rooted in local culture.

MUI Fatwa No. 83, which prohibits Israeli goods, might have a substantial impact on Indonesia's Islamic economy, influencing consumption, trade, investment decisions, and halal certification. If adhered to, demand for Israeli goods may fall, while the boycott effort may have an impact on investment decisions and worldwide trade. This can also help Muslims achieve greater unity and ethical consciousness. The author employs literature review methodologies to examine literature relevant to the research issue. The methodology includes a study of Islamic economics based on both bibliographic and secondary data. To get new ideas and information, the method used is analysis approaches such as interpretation, coherence, and heuristics. MUI Fatwa No.83 of 2023 requires legal assistance for the Palestinian fight against Israeli aggression, including the distribution of zakat, infaq, and alms. The fatwa's economic impact is determined by Muslim involvement and business reaction, which may have an impact on halal certification and Sharia banking. MUI Decree Number 83 of 2023 encourages a boycott of Israeli goods, which benefits the Muslim economy while cutting demand

This study examined the effectiveness of applying the Logan Avenue Problem Solving (LAPS-Heuristic) learning model on mathematics learning outcomes among Class VII students at Wusto Imam An-Nasai Gowa using a one-group pretest–posttest design. The population consisted of all seventh-grade students enrolled in the even semester of the 2024/2025 academic year. A learning outcome test was employed as the primary research instrument to measure students’ performance before and after the implementation of the learning model. The data analysis involved descriptive statistical methods combined with gain tests to assess the extent of improvement. The findings revealed that students’ mathematics achievement fell predominantly within the very high category, with 53.85% of learners classified in this range, indicating a notable increase in category levels compared to their pretest performance. Furthermore, the percentage of students who successfully met the required minimum competency standards after the application of the LAPS-Heuristic model reached 96.15%. This outcome clearly illustrates that the vast majority of students—over 85%—achieved or exceeded the established passing threshold, suggesting that the integration of the LAPS-Heuristic approach was highly effective in enhancing mathematics learning outcomes. Overall, the results underscore that the LAPS-Heuristic learning model can serve as a practical and impactful strategy to improve student engagement, comprehension, and mastery of mathematical concepts in junior high school settings.

This paper discusses the methodologies for balanced transportation problems and their solutions, focusing on efficient and cost-effective distribution of goods from multiple sources to various destinations. The study highlights the importance of maintaining supply and demand balance and explores systematic approaches such as initial solution methods—North-West Corner, Least Cost, and Vogel Approximation Method—and the optimal solution technique, Stepping Stone. An illustrative case involving a company with multiple factories and markets demonstrates the application of these methods, resulting in minimized transportation costs. Additionally, the process of fertilizer allocation and cost analysis is examined, emphasizing the use of the Stepping Stone method to achieve cost minimization. The findings underscore the effectiveness of combining initial heuristics with iterative optimization to attain optimal transportation solutions, thereby enhancing logistical efficiency and reducing operational expenses.

The foundations of Western epistemology are profoundly rooted in ancient Greek philosophy. Throughout its historical development, this epistemological tradition has been shaped by rational, secular, and value-neutral modes of thought. It has given rise to dominant paradigms such as rationalism, empiricism, critical philosophy, and intuitionism. While these paradigms differ in their methodologies and approaches to acquiring knowledge, they are all grounded in a shared philosophical outlook that prioritizes human reason and sensory experience. This study investigates the core aspects of Western epistemology, including its historical evolution, defining traits, inherent limitations, and adverse effects. The research adopts a qualitative method based on literature review and philosophical analysis, employing a systematic and reflective approach. Data were gathered from library sources and examined using various analytical tools, including interpretation, induction and deduction, coherence analysis, holistic reasoning, heuristics, and descriptive analysis. The study concludes that Western epistemology is characterized by an overreliance on rational and empirical methods, a dichotomous worldview, anthropocentrism, resistance to spiritual insight, perpetual doubt, secularism, and a dismissal of sacred values. These traits give rise to fundamental weaknesses such as extreme rationalism, a fragmented view of truth and reality, secularist ideology, and the elevation of humanism and existentialism as ultimate values. The impact of Western epistemology extends beyond the West, influencing Islamic intellectual traditions by encouraging secularization, liberalism, and the advancement of scientific disciplines that exclude recognition of divine authority.

This thesis discusses the role of Achmad Mochtar, a prominent scientist from Indonesia, in the Tragedy of the Fatal Vaccine in Romusah that occurred during the Japanese military occupation, as reported by foreign press in 1944-1945. The aim of this research is to examine the reputation of Achmad Mochtar, who became one of the best scientists Indonesia has ever had, in facing the Tragedy of the Fatal Vaccine in Romusah, where victims died after being injected with a vaccine contaminated with tetanus toxin. The research uses a historical method with a social reconstruction approach based on data from newspapers such as De Telegraaf and HandelsBlad. The methods used in this paper include the historical method, which consists of data collection (heuristics), source criticism, interpretation, and historiography. The data used are mainly from newspapers like De Telegraaf and HandelsBlad, as well as supporting books and websites such as KITLV and www.delpher.nl/kranten, which have greatly facilitated the author in gathering historical sources related to this paper. This study explains that Achmad Mochtar was a doctor and scientist who strongly opposed the Japanese military occupation and the scenario created by the Japanese military in the Tragedy of the Fatal Vaccine in Romusah in 1944-1945. This research uses data analysis methods to examine foreign press reports related to the tragedy, with a focus on how foreign media depicted Achmad Mochtar’s involvement in the cause of the Tragedy of the Fatal Vaccine in Romusah in 1944-1945 and its impact. The results of this study are as follows: Achmad Mochtar, one of the best scientists Indonesia has ever had, became the subject of intense discussion regarding the tragedy he had to endure, the death of Romusah in 1944-1945. Various foreign newspapers, particularly De Telegraaf and HandelsBlad, focused on reporting the ambitious plans of the Japanese military in the creation of vaccines, which were actually intended by the Japanese military to be developed as biological weapons and tested to observe the effects before being used in the Greater East Asia War, which ultimately resulted in the fatal death of hundreds of Romusah in the Klender camp.

This article examines the development of Islam in North Sumatra through various existing historical remains, including mosques, tombs and local traditions related to the history of the spread of Islam from the 13th century to the 20th century. This research aims to provide an understanding of how Islam spread and integrated with local traditions in the region. The method used in this research is historical research through the stages of heuristics, source criticism, interpretation and historiography. The research results show that North Sumatra has a number of important historical remains, such as the Al-Mashun Grand Mosque, Maimun Palace, Azizi Tanjung Pura Mosque, and other historical tombs which are clear evidence of the spread of Islam in this region. This research also shows the important role of the Deli, Langkat and Asahan Sultanates in introducing and developing Islam, as well as how Islam adapted to local culture in North Sumatra. These findings provide an important contribution to understanding the history of Islam in Indonesia and the need to preserve historical remains as part of the nation's cultural heritage.

This research is motivated by the problem of the lack of community participation in developing marine ritual traditions, as well as the limited sources that prove the importance of the annual marine ritual. This type of research is historical research with a qualitative approach and descriptive narrative method. This research includes heuristics, source criticism, interpretation, and writing stages. Data sources used include journals discussing marine ritual traditions in Pelanduk Village, Mandah District, as well as annual observations before the month of Muharram, in-depth interviews with people in charge of marine rituals, and literature studies. The marine ritual tradition in Pelanduk Village is a cultural heritage passed down from generation to generation by coastal communities in Mandah District, Riau Province. This ritual is carried out as an expression of gratitude to God Almighty and respect for the sea as a source of life. This study aims to explore the history, implementation process, meaning, and role of marine ritual traditions in the lives of local communities. The results show that marine rituals contain strong spiritual, social, and ecological values. This ritual involves various cultural symbols, such as offerings, collective prayers, and traditional ceremonies that reflect the harmonious relationship between humans and nature. This study concludes that sea rituals are a cultural heritage that strengthens the identity of coastal communities.

This research aims to understand the dynamics of rationality and emotions in the context of decision making in business. A literature study method is used by collecting literature from various sources related to rationality, emotions, and their interactions in business decision making. The results showed that business decision making needs a balanced approach between rationality and emotions. Rationality bases decisions on logical processes based on facts, through evaluating alternatives and choosing optimal options. Meanwhile, emotions play an important role through heuristics, motivation, perception, and evaluation. The implications for business practice are the importance of balancing rationality with emotions to make better and more sustainable decisions.

This writing aims to describe the development of the Social Studies curriculum in Indonesia. Social studies education in Indonesia did not just appear and develop, but through a long journey full of dynamics. This article reviews social studies education from a historical perspective and its development using historical research methods, which include the steps of heuristics, source criticism (external and internal), interpretation, and historiography. The development of the social studies curriculum in Indonesia has adopted the concepts of social studies education in several major countries, such as the United States and the United Kingdom, which became a reference because of the similarity of the conditions of multicultural society and the background of the country's unstable situation at that time. Nevertheless, the development of social studies education in Indonesia is adapted to the conditions of society and government in the country, which has an impact on the preparation of curriculum and implementation of learning in schools. Along with technological advances, social studies education also continues to grow by utilizing a variety of learning resources and media. In addition, the development of social studies learning materials also involves the active participation of the wider community.

This research aims to understand the dynamics of rationality and emotions in the context of decision making in business. A literature study method is used by collecting literature from various sources related to rationality, emotions, and their interactions in business decision making. The results showed that business decision making needs a balanced approach between rationality and emotions. Rationality bases decisions on logical processes based on facts, through evaluating alternatives and choosing optimal options. Meanwhile, emotions play an important role through heuristics, motivation, perception, and evaluation. The implications for business practice are the importance of balancing rationality with emotions to make better and more sustainable decisions.

In this research there are four focus issues, namely how the process of implementing mandi berdimbar in Langkat Malay traditional weddings, what is the community's view of changes in the mandi berdimbar tradition in Stabat, Langkat Regency, what are the meanings of the mandi berdimbar tradition and how is the development of mandi berdimbar at the moment . The type of method used in this research is a historical research method that goes through four stages, namely heuristics, verification, interpretation and historiography. In collecting data, this research used two methods, namely interviews and documentation. The results obtained from this research are that the mandi berdimbar tradition is a Malay wedding custom from the past. Mandi berdimbar is also called a decorated mandi which is a series of bridal ceremonies which contain a lot of wisdom and teaching. want to get married. Berdimbar bathing is done after the party, the development of the berdimbar tradition is now rarely used, including by Malays, due to the times and the large costs involved in this berdimbar bathing tradition, as well as the lack of time to carry out the berdimbar bathing tradition. In essence, the aim of carrying out the berdimbar bathing event is to teach or remind the bride and groom to carry out the Big Bath (junub) after the wedding night and to convey the joy and gratitude of all the family. In essence, the existence of this tradition must be increased. If it exists among low society, over time this tradition will fade and disappear.    

Bahrain still suffers from electronic solid waste annually due to ineffective waste ‎disposal management. Compared to other Gulf Cooperation Council (GCC) countries, Bahrain ‎generates the largest waste quantity per person, approximately 1.2 to 1.8 ‎million tons of hazardous waste annually. Therefore, the present research article aims to manage the e-waste discarding mitigation by arranging the waste collection, ‎presenting it for sale/purchase/donation (C2C, C2B, B2G), and organizing the waste recycling ‎process. Derived from this aim, the article explores the e-waste ‎phenomena and proposes the development of an e-waste mobile application named “Athar”. ‎ The significance of “Athar” lies in firstly, enabling citizens to live in a ‎clean environment with limited diseases. Secondly, assisting the ‎Ministry of Tourism attract more tourists. ‎ The research article embraces a seven-phased Agile-based SDLC method to analyze, design, implement, test, and evaluate Athar through the utilization of several research techniques, including questionnaires to collect user and system requirements, other techniques such as data flow diagrams, entity relationship diagram, ‎database schema, etc. for the system design, ‎OutSystems programming language to implement the mobile app, and one questionnaire based on ‎Nielsen heuristics for usability evaluation. Findings demonstrate the adequacy of the Athar application with an outstanding usability score of 89.1%.

Combinatorial optimization is a fundamental area in operations research and computer science, focusing on identifying optimal solutions from a finite set of possibilities. This study explores the integration of branch and bound methods with heuristic algorithms to address optimization problems in graph theory and discrete mathematics. Python was employed for algorithm implementation due to its flexibility and comprehensive computational libraries, enabling efficient data analysis and visualization. Several benchmark problems were examined, including the Traveling Salesman Problem (TSP), Minimum Spanning Tree (MST), and Graph Coloring. Simulations were conducted using datasets of varying sizes (small, medium, and large) to evaluate performance across different scales. The results demonstrate that the hybrid approach achieves a balance between solution quality and computational efficiency, outperforming brute-force methods in terms of speed while maintaining near-optimal accuracy. Tabulated results and graphical comparisons highlight the reduction in computation time and improved scalability of the proposed method. The findings suggest that combining systematic search strategies with heuristics offers a practical and effective framework for solving complex combinatorial optimization problems. Recommendations for future research include testing scalability with larger datasets, incorporating advanced metaheuristics, and applying the approach to real-world domains such as logistics and network design.