KRISHNA MURTHY.P, N.VENKATASUBBA NAIDU, and P.RAGHAVENDRA KUMAR, “SYNTHESIS, CHARACTERIZATION AND ANTIMICROBISL STUDIES OF Cu(II), Pd(II), Fe(III) AND Mn(II) COMPLEXES OF TETRADENTATE N4 LIGAND”, ijpbs, vol. 4, no. 3, pp. 947–956, Sep. 2013.