Srinivasa Rao, N., M.P.P. Raju, and J.T. Rao. 2010. “Synthesis and Antimicrobial Activity of 2,3-(Substituted Phenyl) Pyrazine Dicarboxamide”. Asian Journal of Chemistry 19 (1):821-22. https://asianpubs.org/index.php/ajchem/article/view/20561.