G.VALARMATHY, and R.SUBBALAKSHMI. “SYNTHESIS, SPECTRAL CHARACTERIZATION OF BIOLOGICALLY ACTIVE NOVEL SCHIFF BASE COMPLEXES DERIVED FROM 2-SULPHANILAMIDOPYRIMIDINE”. International Journal of Pharma and Bio Sciences, vol. 4, no. 2, June 2013, pp. 1019-2, https://ijpbs.net/index.php/journal/article/view/2257.