Mohamed, M., Mat Jubadi, W., & Wan Zaki, S. (2011). An Implementation of POPBL for Analog Electronics (BEL10203) Course at the Faculty Of Electrical and Electronic Engineering, Uthm. Journal of Technical Education and Training, 3(2). https://penerbit.uthm.edu.my/ojs/index.php/JTET/article/view/413