Atik Maryanti, Winda Ramadianti and Mariana Ade Cahaya 2026. Discovery Learning and Problem-Based Learning (PBL) Models for Learning Motivation and Critical Thinking Skills of Grade VII Students at SMPN 8 Lebong. Edumaspul: Jurnal Pendidikan. 10, 2 (Aug. 2026), 777–788.