Ahmad Tarmizi, and Hidayat Hidayat. 2025. “PENGEMBANGAN BAHAN AJAR BERBASIS PROBLEM BASED LEARNING PADA MATERI BILANGAN BULAT”. Jurnal Cakrawala Ilmiah 4 (8):1229-34. https://mail.bajangjournal.com/index.php/JCI/article/view/10246.