?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=N+H&rft.au=Nam%2C+N+H&rft.aulast=Nam&rft.inst=Ministry+of+Education+and+Training+Government+of+Vietnam&rft.date=25+April+1994&rft.title=Analysis+of+growth+and+yield+of+extra-short-duration+Pigeonpea+(cajimus+cajan+%5Bl.%5D+millsp.)in+relation+to+soil+moisture+availability+&rft.tpages=198&rft.degree=PHD