Implementation of Problem Based Learning (PBL) Model to Improve Students’ Activity and Creative Thinking Skills in Mathematics Subject at SMP Negeri 13 Lebong. International Proceeding Annual International Conference Education Research, [S. l.], v. 1, n. 2, p. 135–141, 2024. Disponível em: https://conference.uin-suka.ac.id/index.php/Pic/article/view/1455. Acesso em: 26 feb. 2026.