Abd Hamid, Izzah, and Wan Asrina Wan Yahaya. “Zero-Waste Campaign: Assessment on University Student’s Behaviour, Awareness, and Impact on Plastic Products”. Malaysian Journal of Social Sciences and Humanities (MJSSH) 5, no. 3 (March 28, 2020): 24 - 29. Accessed December 7, 2021. https://www.msocialsciences.com/index.php/mjssh/article/view/371.