?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Zalkuwi%2C+J&rft.aufirst=J&rft.aulast=Zalkuwi&rft.issn=2376-659X&rft.pages=18-21&rft.atitle=Production+Cost+and+Return%3B+Comparative+Analysis+of+Sorghum+in+India+and+Nigeria&rft.volume=4&rft.issue=2&rft.title=Economics&rft.date=2015&rft.genre=article