Patil, D. P. “A Study of Effectiveness of Addition of Drug Teneligliptin to Metformin, Glimepiride, Pioglitazone Combination in Type II Diabetic Patients”. International Journal of Research in Medical Sciences, vol. 8, no. 2, Jan. 2020, pp. 692-5, doi:10.18203/2320-6012.ijrms20200258.