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This Author published in this journals
All Journal Greenation International Journal of Economics and Accounting Siber International Journal of Sport Education
Ridwan Ridwan
Institut Teknologi dan Bisnis Dewantara, Bogor, Indonesia
Economics, Econometrics & Finance Education Social Sciences

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Activity Based Costing (ABC) System on the Calculation of Cost of Goods Sold (COGS) Ridwan Ridwan; Shirley Mo Ching Yeung; Andri Catur Trissetianto
Greenation International Journal of Economics and Accounting Vol. 1 No. 4 (2023): (GIJEA) Greenation International Journal of Economics and Accounting (December
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijea.v1i4.362

Abstract

This study investigates the application of Activity Based Costing (ABC) in the calculation of Cost of Goods Sold (COGS) and its impact on cost management and business performance. The research aims to explore how the implementation of ABC can improve the accuracy of COGS, enhance cost efficiency, and increase profitability within various industries, including manufacturing, retail, and services. Data were collected through surveys and interviews from 30 companies in Indonesia that have adopted ABC in their cost accounting systems. The results of paired sample t-tests indicated a significant improvement in COGS accuracy, with an average increase of 20% after ABC implementation. Furthermore, the study found that ABC positively impacted cost efficiency (83.33%), profitability (66.67%), and decision-making efficiency (73.33%). The research also identified the challenges of ABC adoption, including the high initial investment and complexity, particularly for small and medium-sized enterprises (SMEs). The findings highlight the long-term benefits of ABC in improving cost allocation, optimizing resource use, and enhancing strategic decision-making. This study contributes to the growing body of literature on cost management and provides practical insights for businesses considering ABC adoption.
Analysis of the Impact of Digital Marketing Strategy on the Growth of Startup Businesses in Indonesia Ridwan Ridwan; Ekaterina Ivanova
Greenation International Journal of Economics and Accounting Vol. 2 No. 4 (2024): Greenation International Journal of Economics and Accounting (December 2024 - F
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijea.v2i4.438

Abstract

This study investigates the impact of digital marketing strategies on the growth of startup businesses in Indonesia, utilizing a mixed-method approach combining both qualitative and quantitative data. Qualitative data were collected through in-depth interviews and case studies, while quantitative data were gathered through surveys from 150 startups across various sectors. The results show that Search Engine Optimization (SEO) is the most effective strategy, with a 72% correlation to revenue growth and a 68% correlation to customer acquisition. Social media marketing had a 60% correlation with revenue growth and a 55% correlation with customer acquisition, indicating its positive, though slightly weaker, impact compared to SEO. Paid advertising showed a 58% correlation with revenue growth and a 60% correlation with customer acquisition, suggesting it plays a role, but with a lower impact than SEO and social media marketing. A multiple regression analysis confirmed that all three strategies—SEO, social media, and paid advertising—significantly predict revenue growth, with SEO being the strongest predictor (? = 0.35, p < 0.01). The study emphasizes that startups employing a combination of these digital marketing strategies experienced higher overall growth, suggesting that an integrated approach is key to maximizing business success. These findings provide valuable insights for startup owners and marketers to optimize their strategies in a competitive digital landscape.
The Influence of Sports on the Mental and Social Development of Early Childhood Ridwan Ridwan
Siber International Journal of Sport Education Vol. 1 No. 3 (2024): (SIJSE) Siber International Journal of Sport Education (January - March 2024)
Publisher : Siber Nusantara Review

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Abstract

This study aims to examine the impact of sports on the mental and social development of early childhood children at TK Perintis Bekasi Utara. A mixed-methods approach was employed, combining both quantitative and qualitative research methods. Quantitative data was obtained through the use of the Childhood Developmental Checklist (CDC) and surveys filled out by parents and teachers to measure children's mental and social development. Qualitative data was collected through interviews with teachers, parents, and sports coaches, as well as direct observations of children’s social interactions during sports activities. The results indicate that children who participated in the sports program showed significant improvements in mental development, including enhanced concentration, problem-solving skills, and emotional regulation. Socially, the sports group also showed significant improvement in communication, teamwork, conflict resolution, and emotional regulation. In contrast, the non-sports group showed only modest improvement in these areas. Statistical analysis showed that the sports group’s improvement in both mental (p < 0.05) and social (p < 0.05) development was statistically significant. These findings suggest that sports have a significant impact on both the mental and social development of early childhood children, and can serve as an effective tool to enhance social and emotional skills at this stage of development. Additionally, qualitative insights gathered from interviews and observations revealed that children who participated in sports exhibited better social interactions, improved empathy, and demonstrated stronger collaboration skills. Teachers and parents reported that these children were more confident in their social interactions and displayed greater emotional resilience in group settings. This study provides valuable insights for parents and educators to encourage children’s participation in sports as part of early childhood education programs. It is hoped that sports programs can become an integral part of supporting the holistic development of children.
Co-Authors Andri Catur Trissetianto Ekaterina Ivanova Shirley Mo Ching Yeung