Malathy, M., C. Srividhya, and R. Rajavel. 2014. “Antimicrobial Activities of Co(II),Ni(II),Cu(II) and Zn(II) Metal Complexes Derived from Tetradentate Schiff Base Ligands”. The International Journal of Science & Technoledge 2 (5). http://internationaljournalcorner.com/index.php/theijst/article/view/138821.