MARTIN, Dliya Syahirah Eka; SUSANTI, Rahmi; DESTIANSARI, Elvira; MADANG, Kodri. The effect of problem based learning model in science process skills on respiratory system materials. Biosfer: Jurnal Pendidikan Biologi, [S. l.], v. 18, n. 2, p. 122–130, 2025. DOI: 10.21009/biosferjpb.54257. Disponível em: https://journal.unj.ac.id/unj/index.php/biosfer/article/view/54257. Acesso em: 20 may. 2026.