Rahmatsyah, Syahrul Wahyu, and Kusumawati Dwiningsih. “Development of Interactive E-Module on The Periodic System Materials As an Online Learning Media”. Jurnal Penelitian Pendidikan IPA 7, no. 2 (April 19, 2021): 255–261. Accessed May 3, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/582.