©2013 National Research Council of Thailand
Varaporn Punyawadee. 1994. An econometric study of the economic value of irrigation water in Thai agriculture. Department of Agricultural Economics and Farm Management, University of Manitoba;
Varaporn Punyawadee. (1994) An econometric study of the economic value of irrigation water in Thai agriculture . University of Manitoba/Winnipeg.
Varaporn Punyawadee. An econometric study of the economic value of irrigation water in Thai agriculture. . Winnipeg:University of Manitoba, 1994.
Varaporn Punyawadee. (1994) An econometric study of the economic value of irrigation water in Thai agriculture . University of Manitoba/Winnipeg.