Tharmalingam, Sobanah Dhevi, Sai Mei Ling, Vikniswari Vija-Kumaran, Kalai Vani Kalimuthu, and Suresh Nodeson. 2022. “Customer Satisfaction on Public Transportation in Penang, Malaysia”. INTI Journal 2022 (June). https://iuojs.intimal.edu.my/index.php/intijournal/article/view/157.