Jeli Dahliah, Apriza Fitriani, and Risnanosanti. “Students’ Critical Thinking and Mathematical Problem Solving Skills through the Problem Based Learning (PBL) Model and Guided Inquiry at SMA Negeri 5 Lebong”. Edumaspul: Jurnal Pendidikan 10, no. 1 (June 11, 2026): 234–249. Accessed July 22, 2026. https://jurnal2.unimen.cloud/index.php/edumaspul/article/view/142.