Sri Aulia, R., D. Stivani Suherman, A. Asrizal, and F. Ulfa Jhora. “Needs Analysis for Developing PBL-Based E-Modules on Alternative Energy to Improve High School Students’ Critical Thinking Ability”. Physics Learning and Education, vol. 4, no. 1, Apr. 2026, pp. 77-83, doi:10.24036/ple.v4i1.328.