Salame II, Nazir S. The Impact of Supplemental Instruction on the Performance and Attitudes of General Chemistry Students. Int. J. Chem. Educ. Res. [Internet]. 2019 Sep. 20 [cited 2024 Nov. 24];3(2):53-9. Available from: https://journal.uii.ac.id/IJCER/article/view/12570