Ngui Kuan Sang & Subhra. (1992). Geografi fizikal. Longman Malaysia Sdn.Bhd..
Chicago Style (17th ed.) CitationNgui Kuan Sang and Subhra. Geografi Fizikal. Petaling Jaya: Longman Malaysia Sdn.Bhd., 1992.
MLA (9th ed.) CitationNgui Kuan Sang and Subhra. Geografi Fizikal. Longman Malaysia Sdn.Bhd., 1992.
Warning: These citations may not always be 100% accurate.