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Soybean is an important food commodity in Indonesia because it is the main raw material for tofu and tempeh, two major protein sources widely consumed by the population. However, domestic soybean production remains far below national demand resulting in heavy dependence on imports. In contrast maize is increasingly preferred by farmers due to its higher productivity and a more stable economic value. Therefore, maize–soybean intercropping has emerged as a promising strategy to improve land-use efficiency while increasing soybean production without reducing maize cultivation. This study systematically mapped and synthesized maize–soybean intercropping research in Indonesia and conducted a meta-analysis of Land Equivalent Ratio LER values reported across studies. Literature searches using Scopus, Web of Science, and Google Scholar identified 179 eligible publications published between 1978 and 2023. Most studies focused on agronomic factors such as variety selection spacing arrangement and fertilizer management. Meta-analysis showed average LER values of 1.47 ± 0.046 for maize–soybean intercropping and 1.36 ± 0.081 for maize–mung bean intercropping indicating advantages over monoculture systems. However, inconsistencies in methodology and reporting standards limited study comparability and sustainability assessments. Future research should integrate ecological, social, and long-term economic indicators alongside standardized reporting frameworks to strengthen evidence-based intercropping recommendations nationally for sustainable agriculture.

The global energy crisis and climate change are driving the development of biodiesel as a renewable energy source. Graphite as an additive shows significant potential in improving the efficiency and reducing emissions of biodiesel. This study maps graphite-biodiesel research in Southeast Asia using a meta analysis of systematic reviews of 68 publications from Scopus, Web of Science, and ScienceDirect from 2015-2024. The results show that Malaysia leads in publication contributions (32%), followed by Thailand (28%) and Indonesia (18%). The optimal graphite concentration of 50 ppm increases brake thermal efficiency by 8.3% and reduces CO (15.7%), HC (12.4%), and smoke (18.9%) emissions, although there is an increase in NOx (6.8%). Palm oil methyl ester dominated the research (56%). Indonesia has strategic opportunities with abundant feedstock and graphite deposits, but faces challenges in research infrastructure, limited international collaboration, and the absence of an integrated national roadmap. Infrastructure investment, human resource strengthening, and industry academia collaboration are needed to accelerate national biodiesel research.

This study critically examines the effectiveness of early intervention programs in addressing war-related trauma in the Middle East by meta-synthesizing forty-seven interventions implemented between 2010 and 2024. The analysis demonstrates that cognitive behavioral therapy (CBT) based interventions achieved a success rate of 78.3 percent with p value less than 0.001 in reducing post-traumatic stress disorder symptoms, with an effect size of d equal to 0.86 indicating substantial therapeutic strength. Group based interventions showed higher effectiveness (83.2 percent) than individual approaches (71.5 percent), and programs involving family support yielded better recovery outcomes (84.7 percent) than those without family involvement (69.3 percent). Regression analysis identified three primary predictors of successful intervention outcomes, namely intervention duration (beta 0.42, p value less than 0.001), therapist cultural competence (beta 0.38, p value less than 0.001), and the integration of social support systems (beta 0.35, p value less than 0.001). These findings expand on prior studies by Ennis et al. (2020) and Mawar et al. (2025), which were limited to evaluating CBT effectiveness, and also reinforce the significance of cultural dimensions and social support systems as critical determinants. In contrast to the meta analysis by Nocon et al. (2017), which reported an effectiveness rate of 65 percent for individual interventions, the present study reveals the superiority of group based approaches in communal Middle Eastern societies. The novelty of this study lies in its comprehensive identification of culturally sensitive determinants of early intervention success and the formulation of an integrative model positioning family support as an essential component in protocols for war-related trauma care.

In today’s date Artificial intelligence (AI) has substantially transformed marketing strategies and specifically Viral Marketing by enhancing the content personalization, targeting the audience and real time campaign optimization. The study explored the Artificial Intelligence impact on Viral marketing with a comprehensive review of 20 literatures that highlights the diverse applications of AI such as predictive analytics, natural language processing (NLP) and AI-driven visual content creation. This study employed meta analysis approach to evaluate how effectively AI could boost marketing reach, engagement and return on investment (ROI). The finding of the study indicates a positive correlation between the efficiency of Viral Marketing campaigns and the integration of AI, despite the fact highlighting ethical and transparency. The study concludes with practical suggestions for using AI in Viral marketing in a responsible and efficient manner to enhance its potential while mitigating related dangers. This study also highlights AI’s revolutionary role in changing market dynamics.

Inappropriate learning models and lack of student interest and attention to physics learning result in unsatisfactory learning outcomes. The purpose of the study was to determine how the effect of Cooperative Learning model type Student Team Achievement Division (STAD) on student learning outcomes. The research method used is meta-analysis, data collection for this research by reviewing and browsing online articles. The results of the study found that the Student Team Achievement Division (STAD) type Cooperative learning model obtained an overall average effect size of 1.61, which means that the STAD type Cooperative learning model can influence student learning outcomes in Physics subjects. Learning material that is very influential in the application of the STAD type is Circular Motion as seen from the effect size value which is in the high category with a value of 8.81. The grade level that obtained a high category in applying the Student Team Achievement Division (STAD) type learning model was SMK class X with an effect size value of 2.2.

This study aims to analyze the factors and risks that cause fraud in various countries with comparisons between sectors and regions. Using Qualitative method: Meta analysis based on five journals related to fraud (Fraud) in various countries. The purpose of using the meta-analysis method, the method is used to integrate data from different studies so that it can provide more accurate results, rather than the results obtained from a single study, and seeks to understand the mechanism, several factors that may affect the occurrence of fraud in various countries and sectors, including the existence of organizational justice,  internal control, opportunity, pressure and rationalization. The results show that fraud is a global problem that requires international solutions, and cooperation between countries and internal communication are indispensable in building a system that can fight organized financial fraud globally. This study aims to provide a deterrent effect, minimize fraud losses and improve control systems. The results of this study are expected to contribute to further understanding of the factors that influence the occurrence of fraud in various countries and sectors, and provide recommendations for preventing and overcoming fraud in various regions.

This learning media aims to develop and improve elementary school students' learning. This media is a development media that uses meta analysis methods. One of the problems in education is the minimum media facilities and infrastructure, so teachers are required to be creative in improving the quality of learning in the classroom, such as developing learning media in the classroom. An interesting learning media that can overcome students' boredom in learning activities is game-based learning activities, such as the application of the snakes and ladders game media. Children at the elementary level have a tendency to play. A fun and relaxed situation will help children to increase their interest in learning. The development of learning media in the form of the snakes and ladders game has the impact of providing discourse about alternative teaching media for elementary level. It is hoped that the use of this learning media can improve the quality of teaching and learning activities at the basic level.

This study aims to determine : (1) The effect size of using mathematic learning media to students’ mathematical abilities as a whole, (2) The effect size of using mathematics learning media to students’ mathematical abilities based on level of education, (3) The effect size of using mathematics learning media to students’ mathematical abilities based on learning media used, (4) The effect size of using mathematics learning media to students’ mathematical abilities based on subject matter, (5) The effect size of using mathematics instructional media to students’ mathematical abilities based on quantified mathematical ablility. This research used meta analysis method. The sampling technique used purposive sampling and obtained 17 research that fit the criteria. Data collection techniques used documentation with the support of software publish or perish. The results of data analysis showed that : (1) Overall using the learning media has a large effect to students’ mathematical abilities as a proportion 0,972, (2) Based on level of education, the use of learning media has a largest effect size if applied at SMP/MTs as a proportion 1,039 (n=16, SD=0,754), (3) Based on learning media used, the visual media has a largest effect size to students’ mathematical abilities as a proportion 1,003 (n=13, SD=0,641), (4) Based on material that is taught, the use of learning media on a branch of logic material has a largest effect size to matematical abilities as a proportion 1,237 (n=2, SD=0,489), (5) Based on quantified mathematical abilities, the use of learning media has a largest effect size to students’ reasoning abilities as a proportion 1,303 (n=3, SD=0,353).

Learning is a complex process which contains several aspects. These aspects are an increase in the amount of knowledge, the ability to remember and reproduce, there is an application of knowledge, inferring meaning, interpreting and relating to reality, and a change as a person. This research is hoped that  can give contribute for schools, teachers, and students. This researcher has led a review entitled Meta-examination of the impact of the Teams Games Tournament (TGT) learning model on science subjects on student learning outcomes using the connection test technique the Team Games Tournament (TGT) Learning Model on Student Learning Outcomes in Science Learning.  is a scalable method for consolidating the consequences of at least two comparable examinations to obtain a mix of quantitative information. This research plans to determine student learning outcomes in science learning after the Team Games Tournament (TGT) learning model is applied.  This research is uses the strategy of Meta Correlation Analysis which is an attempt to summarize various exploratory results quantitatively based on the consequences of important investigations. In this research is can find that there is an impact from the use of the learning model the fun type is Teams Games Tournament Tournament assisted by general media on student learning outcomes. Utilization of Cooperative Learning Model Types of Teams Games Tournament Assisted by Audio Visual has an impact on student learning outcomes. Likewise, TGT can also train self-confidence and all students are given the opportunity to attend classes effectively. Opening the door for students to be interested can make students more dynamic and increase their knowledge.