Amiruddin, A., U. H. Sitompul, A. Azhari, and A. B. Anggara. “The Influence of Online Learning Systems on the Efectiveness of Learning According to Islamic Perspective”. Edumaspul: Jurnal Pendidikan, Vol. 6, no. 2, Oct. 2022, https://jurnal.unimen.cloud/index.php/maspuljr/article/view/5119.