ANGGRENI, D. M.; OKA NEGARA, I. G. A. The Positive Impact of Problem Based Learning Model toward Students’ Science Knowledge Competence. Jurnal Ilmiah Sekolah Dasar, [S. l.], v. 4, n. 4, p. 589–595, 2021. DOI: 10.23887/jisd.v4i4.26282. Disponível em: https://ejournal.undiksha.ac.id/index.php/JISD/article/view/26282. Acesso em: 3 may. 2024.