KALIH, I. K. PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION UNTUK MENINGKATKAN PRESTASI BELAJAR PPKn. Indonesian Journal of Educational Research and Review, [S. l.], v. 3, n. 1, p. 40–46, 2020. DOI: 10.23887/ijerr.v3i1.24490. Disponível em: https://ejournal.undiksha.ac.id/index.php/IJERR/article/view/24490. Acesso em: 17 jul. 2024.