POPPY LARISKI; SITI DARWA SURYANI; KASHARDI KASHARDI. The Use of Problem-Based Learning (PBL) and Inquiry Models to Develop Critical Thinking Skills and Improve Cognitive Learning Outcomes of Students at SMP Negeri 13 Lebong . International Journal of Educational Research, [S. l.], v. 2, n. 3, p. 57–62, 2025. DOI: 10.62951/ijer.v2i3.480. Disponível em: https://international.aripi.or.id/index.php/IJER/article/view/480. Acesso em: 4 mar. 2026.