HASIBUAN, A. A.; RANGKUTI, M. N. S. The Effect of the Problem Based Learning Model on Students’ Communication Skills and Learning Outcomes in Ecosystem Material. Biocaster : Jurnal Kajian Biologi, [S. l.], v. 6, n. 3, p. 1651–1660, 2026. DOI: 10.36312/biocaster.v6i3.1176. Disponível em: https://e-journal.lp3kamandanu.com/index.php/biocaster/article/view/1176. Acesso em: 30 jul. 2026.