Y. S. Ong, N. Yusof, and A. Osmadi, “Challenges of Green Office Implementation: A Case Study in Penang, Malaysia”, ijscet, vol. 12, no. 1, pp. 153–163, May 2021, Accessed: Mar. 11, 2026. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/7114