The Tambon of Saraphi. Amphoe Chok Chai, Changwat Nakhon Ratachasima, North East Thailand. 1:50,000. Land use / 
Map Productions Ltd.
Bude :  Geographical Publications Limited, 
1968]
In: Saraphi ... By K. Janlekha, etc.
Inset: [Location of Saraphi]
The World Land Use Survey. Occasional Papers no. 8.