SUSILOWATI, Eka. Comparison of WhatsApp and Google Classroom Group Online Learning Models to Student Learning Outcomes. Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang, [S.l.], v. 5, n. 1, p. 61-73, jan. 2021. ISSN 2549-5070. Available at: <https://e-journal.ivet.ac.id/index.php/matematika/article/view/1436>. Date accessed: 06 july 2025. doi: https://doi.org/10.31331/medivesveteran.v5i1.1436.