Abdul Khalid, A. (1971). Development of road and timber in Kelantan with special reference to the Pergau River Valley / Abdul Khalid Bin Aziz.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAbdul Khalid, Aziz. Development of Road and Timber in Kelantan with Special Reference to the Pergau River Valley / Abdul Khalid Bin Aziz. 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAbdul Khalid, Aziz. Development of Road and Timber in Kelantan with Special Reference to the Pergau River Valley / Abdul Khalid Bin Aziz. 1971.
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