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 "Tsikata, Yvonne M. and World Institute for Development Economics Research and United Nations University",Owning economic reforms : a comparative study of Ghana and Tanzania,,"World Institute for Development Economics Research, United Nations University",2001,WIDER discussion paper,,9524552302,,https://cir.nii.ac.jp/crid/1130282271489651072