Nathinee Srinate และ Supakanok Thongyai. (2013) Synthesis of graft copolyimide for proton exchange membrane. Chulalongkorn University:ม.ป.ท.Nathinee Srinate และ Supakanok Thongyai. 2013. Synthesis of graft copolyimide for proton exchange membrane. ม.ป.ท.:Chulalongkorn University;Nathinee Srinate และ Supakanok Thongyai. Synthesis of graft copolyimide for proton exchange membrane. ม.ป.ท.:Chulalongkorn University, 2013. Print.