Keerthi Brahmandam, K., S. Kothamasu, A. Makineni, and S. Nama. “FORMULATION AND EVALUATION OF SITAGLIPTIN PHOSPHATE GASTRO RETENTIVE TABLETS”. Caribbean Journal of Sciences and Technology, vol. 2, no. 01, Jan. 2014, pp. 270-81, https://caribjscitech.com/index.php/cjst/article/view/140.