Phuwadon Bunlengsuwan และผู้แต่งคนอื่นๆ. (2015) Improvement of sulfonated polysulfone membrane for direct methanol fuel cell : effect of zeolite Y and sulfonated graphene oxide. Chulalongkorn University:ม.ป.ท.Phuwadon Bunlengsuwan และผู้แต่งคนอื่นๆ. 2015. Improvement of sulfonated polysulfone membrane for direct methanol fuel cell : effect of zeolite Y and sulfonated graphene oxide. ม.ป.ท.:Chulalongkorn University;Phuwadon Bunlengsuwan และผู้แต่งคนอื่นๆ. Improvement of sulfonated polysulfone membrane for direct methanol fuel cell : effect of zeolite Y and sulfonated graphene oxide. ม.ป.ท.:Chulalongkorn University, 2015. Print.