Sinthuja, S. A., and Y. C. Shaji. “Antimicrobial Screening of Novel Schiff Base Ni (II) Complex Derived From Glutaraldehyde and L-Histidine”. The International Journal of Science & Technoledge, vol. 3, no. 4, Apr. 2015, http://internationaljournalcorner.com/index.php/theijst/article/view/124402.