Khowhit, S. , Chunkao, K. , Inkapatanakul, W. , Phewnil, O. and Boutson, A. 2020. The Study of the Concentration of Heavy Metals (As, Cd, Cr, Hg, Ni and Pb) in the Sediment of Coastal Area Receiving Effluent from Phetchaburi Municipal Wastewater Treatment System: The Royally LERD Project, Phetchaburi Province. Thai Journal of Toxicology. 28, 2 (Jun. 2020), 27.