Perutusan Naib Canselor Dato' Ir. Dr. Radin Umar Radin Sohadi 2012, MYUPM-UNIPUTRA-13-223, Container: Gedung 1/20. MAIN ARCHIVES.
Perutusan Naib Canselor Dato' Ir. Dr. Radin Umar Radin Sohadi 2012, MYUPM-UNIPUTRA-13-223, Container: Gedung 1/20. MAIN ARCHIVES. http://putraarchives.upm.edu.my:8081/repositories/2/resources/378 Accessed May 17, 2025.