著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Pak, Sun-chʻan and 對外經濟政策研究院",Measuring tariff equivalents in cross-border trade in services,,Korea Institute for International Economic Policy,2002,KIEP working paper,,8932241244,,https://cir.nii.ac.jp/crid/1130000796778117632