Ramli MS, Shafie S, Nasir N. 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. JPSMM [Internet]. 2023 Jun. 26 [cited 2025 Apr. 10];13(1):125-31. Available from: https://ejournal.upsi.edu.my/index.php/JPSMM/article/view/8128