Rancangan Malaysia Keempat (1981-85) Jilid Lima, MYUPM-UNIPERMA-13-325, Container: Gedung 1/48. MAIN ARCHIVES.
Rancangan Malaysia Keempat (1981-85) Jilid Lima, MYUPM-UNIPERMA-13-325, Container: Gedung 1/48. MAIN ARCHIVES. http://putraarchives.upm.edu.my:8081/repositories/2/resources/846 Accessed March 16, 2025.