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 "Fagborun, J. Gbenga",The Yoruba Koiné : its history and linguistic innovations,,LINCOM Europa,1994,Linguistics edition,,3929075474,,https://cir.nii.ac.jp/crid/1130282269856477696