SIAHAAN, M. .; PARDEDE, S. .; SILITONGA, L. L. .; MARULI, S.; LUMBANSIANTAR, R. .; SINAGA, A. S. Analysis of Factors Affecting Online Learning at Nommensen HKBP University of Medan. European Journal of Education and Pedagogy, [S. l.], v. 4, n. 1, p. 36–42, 2023. DOI: 10.24018/ejedu.2023.4.1.553. Disponível em: https://ej-edu.org/index.php/ejedu/article/view/553. Acesso em: 23 mar. 2023.