Chayanant Hongfa. (2015) Surface modification of polyethylene film by covalent layer-by-layer assembly using polyethyleneglycol and polyethylene imine, as a tool to detect lead (Pb) contaminants. Mahidol University:ม.ป.ท.Chayanant Hongfa. 2015. Surface modification of polyethylene film by covalent layer-by-layer assembly using polyethyleneglycol and polyethylene imine, as a tool to detect lead (Pb) contaminants. ม.ป.ท.:Mahidol University;Chayanant Hongfa. Surface modification of polyethylene film by covalent layer-by-layer assembly using polyethyleneglycol and polyethylene imine, as a tool to detect lead (Pb) contaminants. ม.ป.ท.:Mahidol University, 2015. Print.