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 "Onjala, Joseph O.",Firm compliance to regulatory enforcement of industrial wastewater standards in Kenya,,"Institute for Development Studies, University of Nairobi",2002,Working paper,,,,https://cir.nii.ac.jp/crid/1130000794694811648