Setiaji, Ismi R., and Frida U. Ermawati. “Development of Five-Step Diagnostic Test on Light Wave Concepts to Analyze Students’ Understanding Map on The Concepts”. Radiasi : Jurnal Berkala Pendidikan Fisika 15, no. 1 (April 29, 2022): 43-59. Accessed April 3, 2025. https://ebook.umpwr.ac.id/index.php/radiasi/article/view/1754.