@article{oai:tohoku.repo.nii.ac.jp:00125410, author = {Dedy, Rosandi}, journal = {農業経済研究報告, JOURNAL OF FARM MANAGEMENT ECONOMICS}, month = {Feb}, note = {紀要類(bulletin), 平成29年度修士論文要旨}, pages = {47--47}, title = {Adoption level of farmers on certified and non-certified potato seeds in Tosari Sub-District, Pasuruan District}, volume = {49}, year = {2018} }