Development Of Interactive E-Modules Through Android Applications Based On Guided Discovery Learning On Hydrocarbon Materials For 11th Grades SMA/MA. EPK [Internet]. 2023 Feb. 14 [cited 2026 Oct. 25];4(1):1-11. Available from: http://entalpipendidikan.ppj.unp.ac.id/index.php/epk/article/view/319