Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 飯國 芳明,Features and efficiency of direct payment in Japan,高知論叢 : 社会科学,03888886,高知 : 高知大学経済学会,2007-07,,89,91-117,https://cir.nii.ac.jp/crid/1520853833278172416,