Fajri, M.F., Asrizal, A., Amir, H. and Yumna, H. 2025. 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, 2 (Dec. 2025), 131–142. DOI:https://doi.org/10.24036/jipt/vol3-iss2/112.