Wai, Sim Yee, Cheah Wai Shiang, Syazwanie Filzah Zulkifli, Nurfauza Bt Jali, and Muhammad Asyraf Bin Khairuddin. 2019. “Requirement Engineering Meets Emotion: A Case Study of Quiz MASTer”. International Journal of Advanced Science and Technology 28 (2), 215 -22. http://sersc.org/journals/index.php/IJAST/article/view/481.