Suttinun Phongtamrug และผู้แต่งคนอื่นๆ. (1998) Study on the benzoxazine monomers and their application for ion extraction material. Chulalongkorn University:ม.ป.ท.Suttinun Phongtamrug และผู้แต่งคนอื่นๆ. 1998. Study on the benzoxazine monomers and their application for ion extraction material. ม.ป.ท.:Chulalongkorn University;Suttinun Phongtamrug และผู้แต่งคนอื่นๆ. Study on the benzoxazine monomers and their application for ion extraction material. ม.ป.ท.:Chulalongkorn University, 1998. Print.