1) Alissow B. P. (1954): Die Klimate der Erde, Berlin.
2) 吉岡邦二 (1973): 植物地理学, 生態学講座12, 共立出版.
3) 松井健 (1988): 土壌地理学序説, 築地書館.
4) The Meteorological Department Bangkok, Thailand (1989): THAILAND Country Report on Natural Disasters in Thailand during 1988 and 1989, Presented at The JICA Follow-up Team on Meteorolgy Group Training Course (Bangkok. 3-10 December 1989).
5) Geological Survey Division (1976): Geological map of Thailand 1:250,000; Changwat Nakhon Si Thammarat (NC47-15), Geological Survey Division, Department of Mineral Resources, Thailand.