Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Seon, Hyeon-Kyu",Business Ethics in the Nursing Care Market : Using the Major Care Entrepreneur COMSN as an Example,共栄大学研究論集,1880859X,春日部 : 共栄大学,2008-03-17,,6,27-55,https://cir.nii.ac.jp/crid/1050564288173687296,