Hujair Faizan, Siti Masitoh, Bachtiar S. Bachri. The Effect of Implementing Problem Based Learning on the Result of Students’ Learning at School. JEVR [Internet]. 2019Dec.9 [cited 2024Apr.19];10(1(V):12-4. Available from: https://ojs.amhinternational.com/index.php/jevr/article/view/2959