Panida Khamnoon และ Puttaruksa Varanusupakul. (2012) Development of dispersive liquid-liquid microextraction using an auxiliary solvent for determination of organophosphorus and organochlorine residues. Chulalongkorn University:ม.ป.ท.Panida Khamnoon และ Puttaruksa Varanusupakul. 2012. Development of dispersive liquid-liquid microextraction using an auxiliary solvent for determination of organophosphorus and organochlorine residues. ม.ป.ท.:Chulalongkorn University;Panida Khamnoon และ Puttaruksa Varanusupakul. Development of dispersive liquid-liquid microextraction using an auxiliary solvent for determination of organophosphorus and organochlorine residues. ม.ป.ท.:Chulalongkorn University, 2012. Print.