Pham, Thuy Loan, and Tat Thang Nguyen. “Green Building Certification As a Policy to Promote Green-Building - A Study of Singapore, Taiwan, Australia, UK, US and Lessons for Vietnam”. International Journal of Sustainable Construction Engineering and Technology, vol. 12, no. 3, Oct. 2021, pp. 135-41, https://publisher.uthm.edu.my/ojs/index.php/IJSCET/article/view/8605.