%0 Journal Article %T New Diazo Coupling Reactions for Visible Spectrophotometric Determination of Alfuzosin in Pharmaceutical Preparations %A M. Vamsi Krishna %A D. Gowri Sankar %J Journal of Chemistry %D 2007 %I Hindawi Publishing Corporation %R 10.1155/2007/289426 %U http://dx.doi.org/10.1155/2007/289426