WALES, T. S.; SUMILAT, M. O. .; NANCY TOMBOKAN, S. S. . Penerapan Model Pembelajaran Problem Based Learning untuk Meningkatkan Hasil Belajar Ipas Kelas IV SD Katolik V Tomohon. Indonesian Research Journal on Education, [S. l.], v. 6, n. 2, p. 803 –, 2026. DOI: 10.31004/irje.v6i2.4322. Disponível em: https://irje.org/irje/article/view/4322. Acesso em: 10 oct. 2026.