Permana FH, Sukma E, Wahyono P. The use of distance learning through whatsapp and google meeting to identify differences in biology learning outcomes . Biosfer [Internet]. 2021 Apr. 30 [cited 2026 May 20];14(1):86-98. Available from: https://journal.unj.ac.id/unj/index.php/biosfer/article/view/20094