Sekaran, C. B. and Rani, A. P. (2010) “Development and validation of spectrophotometric method for the determination of DPP-4 inhibitor, sitagliptin, in its pharmaceutical preparations”, Eclética Química, 35(3), pp. 45–53. doi: 10.26850/1678-4618eqj.v35.3.2010.p45-53.