NASUTION, A. K. P. PENGGUNAAN GRUP FACEBOOK SEBAGAI VIRTUAL CLASS. Jurnal As-Salam, [S. l.], v. 1, n. 2, p. 27–37, 2017. Disponível em: https://www.jurnal-assalam.org/index.php/JAS/article/view/82. Acesso em: 20 oct. 2025.