S.Muthuveeran, A. A., O. Mohd Tahir, M. A. Hassan, and H. Ramli. “Determining Controllability Level of Project Issues in Malaysian Landscape Architectural Projects”. Environment-Behaviour Proceedings Journal, vol. 6, no. 18, Dec. 2021, pp. 233-40, doi:10.21834/ebpj.v6i18.3053.