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 "Nafula, Nancy N. and World Institute for Development Economics Research and United Nations University",Achieving sustainable universal primary education through debt relief : the case of Kenya,,"World Institute for Development Economics Research, United Nations University",2002,WIDER discussion paper,,929190256X,,https://cir.nii.ac.jp/crid/1130000796909826304