Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Iwatani Sanshiro,Fundamental and Theoretical Subjects in Agricultural Marketing,Journal of Rural Problems,03888525,The Association for Regional Agricultural and Forestry Economics,1979,15,4,146-155,https://cir.nii.ac.jp/crid/1390001204489883392,https://doi.org/10.7310/arfe1965.15.146