Tran, Tuan, Nghia Nguyen, Van Nguyen, and Thi Nguyen. 2022. “E-Learner’s Needs for Sustainable Tourism Higher Education: A Case of Vietnam”. E-Review of Tourism Research 18 (6):843-71. https://ertr-ojs-tamu.tdl.org/ertr/index.php/ertr/article/view/681.