Hermanto, Andy Wahyu, Tamsik Udin, and Sudirman Sudirman. “The Effect of Learning Methods, Extracurricular Activities, and Perceptions in the Campus Environment on Character Motivation of Student”. Jurnal Penelitian Pendidikan IPA 9, no. 3 (March 31, 2023): 1551–1557. Accessed May 20, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/3144.