A. Z. Zalov, Y. C. Gasimova, and S. A. Ibrahimova, “LIQUID-LIQUID EXTRACTION AND SPECTROPHOTOMETRIC CHARACTERIZATION OF SOME NEW TERNARY IONASSOCIATION COMPLEXES OF COBALT (II) AND NICKEL (II)”, as, vol. 2, no. 6, pp. 01-13, Jun. 2016.