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 Richard O. Wada and University of the Philippines. Institute of Economic Development and Research,A note on sensitivity properties of four income inequality measures,,"Institute of Economic Development and Research, School of Economics, University of the Philippines",1974,Discussion paper,,,,https://cir.nii.ac.jp/crid/1130282269241268608