Suthep Tangsup. (2006) A spatial decision support system (SDSS) for highland basin conservation and rehabilitation, upper Nan basin northern Thailand /. Kasetsart University,:ม.ป.ท.Suthep Tangsup. 2006. A spatial decision support system (SDSS) for highland basin conservation and rehabilitation, upper Nan basin northern Thailand /. ม.ป.ท.:Kasetsart University,;Suthep Tangsup. A spatial decision support system (SDSS) for highland basin conservation and rehabilitation, upper Nan basin northern Thailand /. ม.ป.ท.:Kasetsart University, 2006. Print.