Arifin N. UPAYA MENINGKATKAN SELF-EFFICACY SISWA DALAM PEMBELAJARAN MATEMATIKA MELALUI PROBLEM BASED LEARNING. pen. mahakam. j. pendidik. dasar. [Internet]. 2019 Apr. 22 [cited 2024 Jul. 3];3(3):255-66. Available from: https://jurnal.fkip-uwgm.ac.id/index.php/pendasmahakam/article/view/293