ADI UMBU NGGABA RIHI ETI; VIDRIANA OKTOVIANA BANO. Application of the Problem Based Learning (PBL) Learning Model to Improve Student Learning Outcomes at SMP Negeri 4 Umbu Ratu Nggay. Formosa Journal of Multidisciplinary Research, [S. l.], v. 1, n. 8, p. 1601–1616, 2022. DOI: 10.55927/fjmr.v1i8.2239. Disponível em: https://journal.formosapublisher.org/index.php/fjmr/article/view/2239. Acesso em: 16 jul. 2026.