Ramli, Masliza Siti, and Nor’ain Mohd Tajudin. “Analisis Keperluan Untuk Membangunkan Modul Pembelajaran Berasaskan Challenge Dalam Mempelajari Matematik Bagi Murid Tingkatan 4: Need Analysis for Developing a Challenge-Based Learning Module in Learning Mathematics for Form 4 Students”. Jurnal Pendidikan Sains dan Matematik Malaysia 11 (February 4, 2021): 50–58. Accessed April 20, 2024. https://ejournal.upsi.edu.my/index.php/JPSMM/article/view/4737.