Chalis GA, Ariani yetti. Pengaruh Model Problem Based Learning (PBL) Terhadap Hasil Belajar Pecahan di Sekolah Dasar. jptam [Internet]. 2020 Nov. 9 [cited 2024 Apr. 19];4(3):2936-44. Available from: https://jptam.org/index.php/jptam/article/view/794