SUMUAL, Jillian Trivena; PENDONG, Dientje F.; OGI, Nova L. I. Problem-Solving Model in Biology Learning to Improve the Critical Thinking Ability of Students at SMP Negeri 2 Ratahan. Jurnal Pendidikan Tambusai, [S. l.], v. 8, n. 1, p. 10799–10810, 2024. DOI: 10.31004/jptam.v8i1.13992. Disponível em: http://jptam.org/index.php/jptam/article/view/13992. Acesso em: 9 may. 2025.