Azmi, N. F., H. C. Ng, S. J. Lin Chua, C. P. Au-Yong, and C. K. Khoo. “MITIGATING MAINTENANCE COST OVERRUNS IN NON-STRATIFIED GATED AND GUARDED COMMUNITY (GACOS) DEVELOPMENT”. PLANNING MALAYSIA, vol. 24, no. 43, Aug. 2026, doi:10.21837/pm.v24i43.2112.