Watcharaporn Kaewdee. 1999. Population study of waterbirds and the assessment of the suitability of Khuan Khi Sian, Thale Noi Non-Hunting area, as a Ramsar site. Bangkok:Chulalongkorn University;

Watcharaporn Kaewdee. Population study of waterbirds and the assessment of the suitability of Khuan Khi Sian, Thale Noi Non-Hunting area, as a Ramsar site. Bangkok:Chulalongkorn University, 1999. Print.

Watcharaporn Kaewdee. (1999) Population study of waterbirds and the assessment of the suitability of Khuan Khi Sian, Thale Noi Non-Hunting area, as a Ramsar site. Chulalongkorn University:Bangkok.