PUNAJI, Punaji. Pembelajaran Sistem Online: Tantangan dan Rangsangan. MAJALAH ILMIAH PEMBELAJARAN, [S. l.], v. 3, n. 2, 2007. Disponível em: https://jurnal.uny.ac.id/index.php/mip/article/view/5992. Acesso em: 5 jul. 2025.