Rahmawati R, Niam F, saifudin A. Manajemen Penerapan Model Problem Based Learning Terhadap Hasil Belajar Matematika Materi Diagram Batang Siswa Kelas IV SDN Garum 1. patria. educ. j. [Internet]. 2021 Dec. 28 [cited 2026 Aug. 13];1(2):1-8. Available from: https://ojs.unublitar.ac.id/index.php/pej/article/view/97