Mohamad Yusuf, Norfazilah, et al. “The Effect of a Technology-Enhanced Learning (TEL) Module on the Achievement of Form Four Students in the Topic of Waves and Sound”. Jurnal Pendidikan Sains Dan Matematik Malaysia, vol. 11, Feb. 2021, pp. 81-93, https://doi.org/10.37134/jpsmm.vol11.sp.8.2021.