EFFENDI, Ardiansyah Firman; PURWANTI, Kristi Liani. Improving Student Learning Outcomes Through the Application of the Problem Based Learning Model in Natural Sciences Subjects. Research Journal on Teacher Professional Development, [S. l.], v. 2, n. 1, p. 61–74, 2024. DOI: 10.21580/rjtpd.v2i1.15265. Disponível em: https://journal.walisongo.ac.id/index.php/rjtpd/article/view/15265. Acesso em: 2 jul. 2026.