?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Santoso&rft.aulast=Tri&rft.au=Tri%2C+Santoso&rft.date=May+2014&rft.title=Proceeding+of+International+Conference+On+Research%2C+Implementation+And+Education+Of+Mathematics+And+Sciences+2014&rft.atitle=CHROMIUM+EXTRACTION+FROM+SOIL+BY+USING+GREEN+MUSTARD+(Brassica+juncea)&rft.genre=article