MUHAMAD SAHPUTRA, Yusup; AMANATURRAKHMAH, Isna; ROGIBAH. The Effect of Project Based Learning (PjBL) on Fourth Grade Elementary Students Science Concept Understanding. R-Disa: Riset Inovasi Pendidikan Guru Sekolah Dasar, [S. l.], v. 1, n. 2, p. 83–91, 2026. DOI: 10.32493/rdisa.v1i2.63725. Disponível em: https://openjournal.unpam.ac.id/index.php/rdisa/article/view/63725. Acesso em: 14 sep. 2026.