Nasttseing Chawalosephomsity และ Pisut Painmanakul. (2009) Enhancement Cuttong Oil Wastewater Treatmen anf Separation by coalescess /. Chulalongkorn University,:ม.ป.ท.Nasttseing Chawalosephomsity และ Pisut Painmanakul. 2009. Enhancement Cuttong Oil Wastewater Treatmen anf Separation by coalescess /. ม.ป.ท.:Chulalongkorn University,;Nasttseing Chawalosephomsity และ Pisut Painmanakul. Enhancement Cuttong Oil Wastewater Treatmen anf Separation by coalescess /. ม.ป.ท.:Chulalongkorn University, 2009. Print.