Iryanto, Nindy Dewi. “Meta Analisis Penerapan Model Pembelajaran Problem Based Learning (PBL) Sebagai Sistem Belajar Mengajar Bahasa Indonesia Inovatif Di Sekolah Dasar”. Jurnal Basicedu 5, no. 5 (September 6, 2021): 3829–3840. Accessed July 22, 2024. https://jbasic.org/index.php/basicedu/article/view/1415.