Ravi C. Munde , Mr. Akshay R. Misal, K. P. T. O. R. C. , M. S. R. S. “Factor Authentication for Banking System by Using Android Based Smart Phones”. International Journal of Engineering and Computer Science, vol. 4, no. 02, Feb. 2015, http://ijecs.in/index.php/ijecs/article/view/1108.