Ramli, M. S.; 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 2023, 13, 125-131.