Putchaya Thunhapran และผู้แต่งคนอื่นๆ. (2007) Removal and concentration of pyrene from contaminated soil using a phase separation of mixed cationic and anionic surfactants solution. Chulalongkorn University:ม.ป.ท.Putchaya Thunhapran และผู้แต่งคนอื่นๆ. 2007. Removal and concentration of pyrene from contaminated soil using a phase separation of mixed cationic and anionic surfactants solution. ม.ป.ท.:Chulalongkorn University;Putchaya Thunhapran และผู้แต่งคนอื่นๆ. Removal and concentration of pyrene from contaminated soil using a phase separation of mixed cationic and anionic surfactants solution. ม.ป.ท.:Chulalongkorn University, 2007. Print.