Jasmida, Sinta, and Ratna Mariani. “Hasil Belajar Materi Sifat-Sifat Cahaya Melalui Model Problem Based Learning”. Educator Development Journal, vol. 4, no. 1, Feb. 2026, pp. 82-92, https://journal.ar-raniry.ac.id/index.php/edj/article/view/9956.