Shamsuddin, S., Eng Tek, O., & Desa, S. (2019). Effects of Based LearningIssue of Achievement BiologyAmong Form Four Students (49 - 60). Jurnal Pendidikan Sains Dan Matematik Malaysia, 2(2), 49-60. https://ejournal.upsi.edu.my/index.php/JPSMM/article/view/1822