Nakara Bhawawet และ Apichat Imyim. (2010) Indirect determination of melamine by atomic spectrometry of excess copper(II) Ion. Chulalongkorn University:ม.ป.ท.Nakara Bhawawet และ Apichat Imyim. 2010. Indirect determination of melamine by atomic spectrometry of excess copper(II) Ion. ม.ป.ท.:Chulalongkorn University;Nakara Bhawawet และ Apichat Imyim. Indirect determination of melamine by atomic spectrometry of excess copper(II) Ion. ม.ป.ท.:Chulalongkorn University, 2010. Print.