Nik Mohamed Sukri, Nik Adlin, Zulhabri Ismail, and Wan Tarmeze Wan Ariffin. 2020. “Conceptual Framework for Developing a Model of Effective Tree Preservation Order (Act 172) Implementation in Construction Projects”. International Journal of Sustainable Construction Engineering and Technology 11 (1): 18-30. https://publisher.uthm.edu.my/ojs/index.php/IJSCET/article/view/6148.