Manik M. ANALISIS PEMBELAJARAN DARINGMATEMATIKA MELALUI MEDIAWHATSAPP DAN GOOGLE CLASSROOM SELAMA PANDEMI COVID-19 DIKELAS VIII SMP SANTO YOSEPH MEDAN. Cartesius [Internet]. 2022 Feb. 11 [cited 2026 Sep. 12];4(2):74-82. Available from: https://ejournal.ust.ac.id/CARTESIUS/article/view/1703