Tamba, Alvin Gratianus. “ANALISIS PROSES PEMBELAJARAN DARING MATA PELAJARAN MATEMATIKA DI YAYASAN SERI AMAL MEDAN”. Cartesius : Jurnal Pendidikan Matematika 4, no. 2 (February 14, 2022): 120–131. Accessed September 12, 2026. https://ejournal.ust.ac.id/CARTESIUS/article/view/1712.