F. P. Iryanto, F. Festiyed, H. Hamdi, and S. Riyasni, “Creation Alternative Energy Electronic Student Worksheets (E-LKPD) Based on the "Nabuang Sarok" Waste Management Program to Improve Students Environmental Concern”, Department of Physics Universitas Negeri Padang, vol. 3, no. 4, Nov. 2025.