Khowhit, Sateinpong, Wasin Inkapatanakul, Onanong Phewnil, Anukorn Boutson, and Kasem Chunkao. 2014. “The Coastal Water Quality Change by Effluent Discharging from Phetchaburi Municipal Wastewater Treatment System: The King’s Royally Initiated Environmental Research and Development Project, Phetchaburi Province, Thailand”. Environment and Natural Resources Journal 12 (2). Nakhon Pathom, Thailand:58-65. https://ph02.tci-thaijo.org/index.php/ennrj/article/view/71214.