Muhammad Nur Arsyad Azman, Choy Peng Ng, Faridah Hanim Khairuddin, Neza Ismail and Wan Mohamed Syafuan Wan Sabri 2020. DEVELOPMENT OF A COMPOSITE PAVEMENT PERFORMANCE INDEX TO MONITOR THE PAVEMENT CONDITION IN UPNM. Zulfaqar Journal of Defence Science, Engineering & Technology. 3, 1 (Jun. 2020).