Nur Insyiroh Pulungan. “PENINGKATAN HASIL BELAJAR MATERI SIFAT-SIFAT CAHAYA MELALUI MODEL PROBLEM BASED LEARNING”. Komprehensif, vol. 1, no. 1, Aug. 2023, pp. 146-59, https://ejournal.edutechjaya.com/index.php/komprehensif/article/view/104.