Siburian, Donny. “TINGKAT STRESS PESERTA DIDIK DALAM MASA PANDEMI COVID-19 ”. Gema Kampus IISIP YAPIS Biak 17, no. 2 (December 30, 2022): 28-35. Accessed July 7, 2025. https://www.e-journal.iyb.ac.id/index.php/gemakampus/article/view/245.