RAHMAWATI, Retno; NIAM, Fathul; SAIFUDIN, Ahmad. Manajemen Penerapan Model Problem Based Learning Terhadap Hasil Belajar Matematika Materi Diagram Batang Siswa Kelas IV SDN Garum 1. Patria Educational Journal (PEJ), [S. l.], v. 1, n. 2, p. 1–8, 2021. DOI: 10.28926/pej.v1i2.97. Disponível em: https://ojs.unublitar.ac.id/index.php/pej/article/view/97. Acesso em: 13 aug. 2026.