Zainal, Azaliza, Khairul Nizal Mustafa Hilmy, and Nahdatul Akma Ahmad. “Audience Response Analysis System ( ARAS )”. Selangor Science & Technology Review (SeSTeR) 3, no. 1 (March 24, 2020): 41-48. Accessed January 25, 2022. http://sester.journals.unisel.edu.my/ojs/index.php/sester/article/view/135.