Shoaib, M., G. Rahman, S. W. Ali Shah, and M. N. Umar. “Synthesis of 4-Aminoantipyrine Derived Schiff Bases and Their Evaluation for Antibacterial, Cytotoxic and Free Radical Scavenging Activity”. Bangladesh Journal of Pharmacology, vol. 10, no. 2, Apr. 2015, pp. 332-6, doi:10.3329/bjp.v10i2.22471.