Pham, Hau Van, and Hanh Thi Hai Nguyen. “Factors Affecting Customer Satisfaction: A Case Study of Grab in Vietnam”. The International Journal of Business & Management 8, no. 2 (February 29, 2020). Accessed April 30, 2024. http://www.internationaljournalcorner.com/index.php/theijbm/article/view/151124.