“SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SCHIFF’S AND N-MANNICH BASES OF ISATIN AND ITS DERIVATIVES WITH 4-AMINO-N-CARBAMIMIDOYL BENZENE SULFONAMIDE”, Int. J. Pharm. Sci. Drug Res., vol. 2, no. 2, pp. 151–154, Apr. 2010, doi: 10.25004/IJPSDR.2010.020214.