Paisri Nasomjai. 1993. Analysis of halogen compounds in tap water and drinking water in the urban area of Chiang Mai by gas chromatography. Graduate School, Chiang Mai University;
Paisri Nasomjai. (1993) Analysis of halogen compounds in tap water and drinking water in the urban area of Chiang Mai by gas chromatography . Chiang Mai University/Chiang Mai.
Paisri Nasomjai. Analysis of halogen compounds in tap water and drinking water in the urban area of Chiang Mai by gas chromatography. . Chiang Mai:Chiang Mai University, 1993.
Paisri Nasomjai. (1993) Analysis of halogen compounds in tap water and drinking water in the urban area of Chiang Mai by gas chromatography . Chiang Mai University/Chiang Mai.