Doranggi, Selvina, and Ardiana Rizka. “Analysis of the Effectiveness of Online Learning Based on Google Classroom on High School Students’ Learning Achievement”. Indonesian Journal of Education Research (IJoER) 6, no. 1 (February 14, 2025): 45-52. Accessed February 23, 2025. https://cahaya-ic.com/index.php/IJoER/article/view/1481.