Salsabila, Shelby, Erviyenni Erviyenni, and Sri Wilda Albeta. “Validity of a Discovery Learning-Based E-Module on Hydrocarbon Material for Grade XI Students of Senior High Schools”. Chemistry Education Practice 8, no. 2 (December 1, 2025): 257–267. Accessed December 22, 2025. https://jurnalfkip.unram.ac.id/index.php/CEP/article/view/9294.