Sairung Changkhamchom และ Anuvat Sirivat. (2013) Development of sulfonated poly(ether ketone ether sulfone) (S-PEKES) as proton exchange membrane (PEM) for using in direct methanol fuel cell (DMFC). Chulalongkorn University:ม.ป.ท.Sairung Changkhamchom และ Anuvat Sirivat. 2013. Development of sulfonated poly(ether ketone ether sulfone) (S-PEKES) as proton exchange membrane (PEM) for using in direct methanol fuel cell (DMFC). ม.ป.ท.:Chulalongkorn University;Sairung Changkhamchom และ Anuvat Sirivat. Development of sulfonated poly(ether ketone ether sulfone) (S-PEKES) as proton exchange membrane (PEM) for using in direct methanol fuel cell (DMFC). ม.ป.ท.:Chulalongkorn University, 2013. Print.