Safitri D, Nurafni N. The Effectiveness of PBL Models Based on Google Meet on the Ability of Mathematical Problem Solving. j. ilm. sekol. dasar [Internet]. 2021 Aug. 30 [cited 2024 Apr. 25];5(2):315-2. Available from: https://ejournal.undiksha.ac.id/index.php/JISD/article/view/36608