Au-Yong, Cheong Peng, Anna Siaw Ee Chen, and Maszuwita Abdul Wahab. “Establishing Effective Operation and Maintenance That Enhances the Energy Performance of Green Office Buildings in Malaysia”. International Journal of Real Estate Studies 16, no. S1 (November 25, 2022): 104–113. Accessed May 10, 2024. https://intrest.utm.my/index.php/intrest/article/view/207.