Abdullah, Ahmad Sharim, Shahrul Yani Said, and Lilis Shereena Safiee. “Implementation of Defect Management Principle in Maintenance Practice at Local Authority”. Environment-Behaviour Proceedings Journal 6, no. SI4 (July 31, 2021): 193–197. Accessed March 29, 2024. https://ebpj.e-iph.co.uk/index.php/EBProceedings/article/view/2919.