K.RAJASEKAR and T.RAMACHANDRAMOORTHY 2013. SYNTHESIS, SPECTRAL CHARACTERIZATION AND BIOLOGICAL ACTIVITIES OF Cr(III), Co(II), Ni(II) AND Cd(II) COMPLEXES WITH 4-AMINOANTIPYRINE AND THIOCYANATE ION AS LIGANDS. International Journal of Pharma and Bio Sciences. 4, 2 (Jun. 2013), 271–276.