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 "Swanson, Daniel and Wolde-Semait, Teferra",Africa's public enterprise sector and evidence of reforms,,World Bank,1989,World Bank technical paper,,0821311646,,https://cir.nii.ac.jp/crid/1130000795830345344