Zainal, A., K. N. Mustafa Hilmy, and N. A. Ahmad. “Audience Response Analysis System ( ARAS )”. Selangor Science & Technology Review (SeSTeR), Vol. 3, no. 1, Mar. 2020, pp. 41-48, http://sester.journals.unisel.edu.my/ojs/index.php/sester/article/view/135.