Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Oishi Chitose and Yoshida Fujio,Black sheep effect and ingroup favoritism in social identity perspective,The Japanese journal of psychology,00215236,The Japanese Psychological Association,2002,73,5,405-411,https://cir.nii.ac.jp/crid/1390001205079427072,https://doi.org/10.4992/jjpsy.73.405