SURJADINATA, William. Ekspektasi Kinerja Pembelajaran Online di Perguruan Tinggi Jakarta. Ultima InfoSys : Jurnal Ilmu Sistem Informasi, [S. l.], v. 5, n. 1, p. 33–40, 2014. DOI: 10.31937/si.v5i1.217. Disponível em: https://ejournals.umn.ac.id/index.php/SI/article/view/217. Acesso em: 8 oct. 2025.