Lop, Nor Suzila, Kharizam Ismail, and Haryati Mohd Isa. “The Execution of Key Performance Indicators in the Operational Phase of PFI Projects in Malaysia”. Asian Journal of Quality of Life 3, no. 12 (July 20, 2018): 157–167. Accessed April 29, 2024. https://ajqol.e-iph.co.uk/index.php/ajqol/article/view/152.