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
"Kadouf, Hunud Abia","A preliminary survey of customary law in Qala El Nahla and El Hawata area Kassala Province, Sudan : research",,"Faculty of law, University of Kahrtoum",1975,Customary law memorandum,,,,https://cir.nii.ac.jp/crid/1131975282643296768