Khadijah Md Ariffin, Sani Inusa Milala, and Rozilah Kasim. “Facilities Management Business Opportunities”. International Journal of Sustainable Construction Engineering and Technology 13, no. 2 (June 21, 2022): 258–267. Accessed May 1, 2024. https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/11298.