Lincoln, A., S. Boinapalli, and A. A. Kumar. “Synthesis, Spectral Characterization and Antibacterial Investigation of Ni(II) Coordination Complexes of Macrocyclic Schiff Base Ligands Derived from 4-Aminoantipyrine”. JOURNAL OF ADVANCES IN CHEMISTRY, vol. 13, no. 1, May 2017, pp. 5948-5, doi:10.24297/jac.v13i12.6124.