ZEBUA, Justin Intan Purnama Sari; GULO, Hardikupatu; WARUWU, Toroziduhu; HAREFA, Agnes Renostini; LASE, Natalia Kristiani. PENGEMBANGAN BUKU SAKU IPA BERBASIS PROBLEM BASED LEARNING DI UPTD SMP NEGERI 8 GUNUNGSITOLI. SECONDARY: Jurnal Inovasi Pendidikan Menengah , [S. l.], v. 5, n. 4, p. 732–741, 2025. DOI: 10.51878/secondary.v5i4.8570. Disponível em: https://www.jurnalp4i.com/index.php/secondary/article/view/8570. Acesso em: 3 may. 2026.