Implementation of Problem Based Learning (PBL) Model to Improve Students’ Activity and Creative Thinking Skills in Mathematics Subject at SMP Negeri 13 Lebong. Pic [Internet]. 2024 Nov. 6 [cited 2026 Feb. 26];1(2):135-41. Available from: https://conference.uin-suka.ac.id/index.php/Pic/article/view/1455