Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Josef MESSERKLINGER,Set Theory for Language Learners,東邦大学教養紀要 = Toho liberal arts reveiw,03877566,東京 : 東邦大学,2014,,46,1-8,https://cir.nii.ac.jp/crid/1520572357838867072,