著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL Praiphol Koomsup,"Agricultural incentives, comparative advantage and employment in Thailand : a case study of rice, maize, cassava and sugar cane",,"Thammasat University, Faculty of Economics",1980,Research report series,,,,https://cir.nii.ac.jp/crid/1130282271623484672