A. B.  Pharne, Santhakumari, B., Ghemud, A. S., Jain, H. K., and Kulkarni, M. J., ?Bioanalytical method development and validation of vildagliptin a novel dipeptidyl peptidase IV inhibitor by RP-HPLC method?, International Journal of Pharmacy and Pharmaceutical Sciences, vol. 4, no. 3, pp. 119-123, 2012.