COMPARATIVE ANALYSIS OF SOLVENT FREE, KHSO4 AND CE(SO4)2 CATALYZED MICROWAVE-ASSISTED SYNTHESIS OF 1, 3-DIAZACYCLOPENTA-2, 4-DIENES AND EVALUATION OF ITS ANTI-BACTERIAL ACTIVITY. PJS. 2018;70(1):56-62. doi:10.57041/vol70iss1pp56-62