Fajri, Muhamad Fajri, Asrizal Asrizal, Harman Amir, and Hayyu Yumna. “Validity Analysis of the Development of Integrated Global Warming Digital Teaching Material Using Ethno-PBL to Improve Students Critical Thinking Ability”. Journal of Innovative Physics Teaching 3, no. 2 (December 17, 2025): 131–142. Accessed April 30, 2026. https://jipt.ppj.unp.ac.id/index.php/jipt/article/view/112.