Ramli, Masliza Siti, Sabarina Shafie, and Nurihan Nasir. “The Validity of Teaching and Learning Module Integrated Challenge-Based Learning Methods in Topic Consumer Mathematics : Kesahan Modul Pengajaran Dan Pembelajaran Berintegrasikan Kaedah Pembelajaran Berasaskan Cabaran Bagi Tajuk Matematik Pengguna”. Jurnal Pendidikan Sains dan Matematik Malaysia 13, no. 1 (June 26, 2023): 125–131. Accessed November 21, 2024. https://ejournal.upsi.edu.my/index.php/JPSMM/article/view/8128.