Singh، G.S. (2004). "Beta-lactams in the new millennium. Part-II: Cephems, oxacephems, penams and sulbactam". Mini Reviews in Medicinal Chemistry. ج. 4 ع. 1: 93–109. DOI:10.2174/1389557043487547. PMID:14754446.
Singh، G.S. (2004). "Beta-lactams in the new millennium. Part-II: Cephems, oxacephems, penams and sulbactam". Mini Reviews in Medicinal Chemistry. ج. 4 ع. 1: 93–109. DOI:10.2174/1389557043487547. PMID:14754446.