Sudibyo E, Jatmiko B, Widodo W. PENGEMBANGAN INSTRUMEN MOTIVASI BELAJAR FISIKA: ANGKET. JPPIPA (Jur. Penelit. Pendidik. IPA) [Internet]. 2017 Feb. 13 [cited 2025 Jul. 2];1(1):13-21. Available from: https://journal.unesa.ac.id/index.php/jppipa/article/view/576