Watcharaporn Wongsakoonkan และผู้แต่งคนอื่นๆ. (2014) Suitable Types and Constituent Ratios for Clay-Pot Water Filters to Improve the Physical and Bacteriological Quality of Drinking Water. <i>EnvironmentAsia</i>, <i>7</i>(2), p117-123.Watcharaporn Wongsakoonkan และผู้แต่งคนอื่นๆ. "Suitable Types and Constituent Ratios for Clay-Pot Water Filters to Improve the Physical and Bacteriological Quality of Drinking Water". EnvironmentAsia 7 (2014):p117-123.Watcharaporn Wongsakoonkan และผู้แต่งคนอื่นๆ. Suitable Types and Constituent Ratios for Clay-Pot Water Filters to Improve the Physical and Bacteriological Quality of Drinking Water. Thai Society of Higher Education Institutes on Environment:ม.ป.ท. 2014.