Ch. S. Vijayavaani, et al. “ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE QUANTITATIVE ESTIMATION OF TOLVAPTAN IN API FORM AND ITS MARKETED PHARMACEUTICAL DOSAGE FORM BY RP-HPLC”. International Journal of Pharmaceutical, Biological and Chemical Sciences, vol. 13, no. 2, Apr. 2024, pp. 30-38, https://ijpbcs.com/index.php/ijpbcs/article/view/18.