Rozi, Fahrur, and Sugeng Romadhoni. “Media Pembelajaran Sistem Periodik Unsur Berbasis Android Dengan Metode Self Directed Learning”. Edu Komputika Journal 10, no. 1 (July 31, 2023): 27 - 37. Accessed May 17, 2024. https://journal.unnes.ac.id/sju/edukom/article/view/61637.