“Development of a Contextual E-book Integrated with 3D Images of Pico hydro Rainwater for Alternative Energy Materials to Improve Learning Independence of Students at SMA Negeri 3 Simpang Hilir”, IJC-MaSTEd , vol. 1, no. 1, pp. 19–24, May 2026, doi: 10.31571/ijcmasted.v1i1.1019.