Varian Febriani, Annisa, and Puri Pramudiani. “Implementation of Online Learning During the Covid 19 Pandemic on Psychological Development of Grade 4 Students”. Jurnal Educatio FKIP UNMA 7, no. 3 (July 6, 2021): 674–679. Accessed June 28, 2025. https://ejournal.unma.ac.id/index.php/educatio/article/view/1184.