پژوهشکده پاییزان | فروردین ۱۳۸۹
8- ishtiaq, h and m. asif 2006. optimum cropping pattern under wto. (world trade organization) article from economic review. high beam research. mht. 9- mahesh r. 2003. causes and consequences of change in cropping pattern- a location specific study is an independent research …