SIAGIAN, Ramces P.; SIAGIAN, Asister Fernando; SIJABAT, Desi. The Influence of the Problem Based Learning (PBL) Learning Model on the Critical Thinking Skills of Grade V . Jurnal Ilmu Sosial dan Humaniora , [S. l.], v. 4, n. 1, p. 347–358, 2026. DOI: 10.58540/isihumor.v4i1.1491. Disponível em: https://www.putrapublisher.org/index.php/isihumor/article/view/1491. Acesso em: 27 apr. 2026.