Setiawan, I M Dedy, dan I D G Ari Oka. “The Use of Audio-Visual Assisted Google Classroom for Mathematics Course”. Journal of Education Technology 4, no. 3 (September 13, 2020): 244–253. Diakses Juli 17, 2024. https://ejournal.undiksha.ac.id/index.php/JET/article/view/28529.