Izaidi Ishak, Muhamad, and Amran Harun. “Online Consumer Review and Its Roles in Malaysian Umrah Industry: Issues and Challenges”. International Journal of Psychosocial Rehabilitation 23, no. 2 (May 31, 2019): 718–726. Accessed December 27, 2024. https://psychosocial.com/PSY/index.php/ijpr/article/view/1925.