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 "Agbu, Osita",Ethnic militias and the threat to democracy in post-transition Nigeria,,Nordiska Afrikainstitutet,2004,Research report,,9171065253,,https://cir.nii.ac.jp/crid/1130000793687256448