A Review Study of Reverse Phase HPLC & UV-Visible Methods for Active Pharmaceutical Ingredients [API] In Pure and Their Formulations Perindopril–Amlodipine Dihydropyridine: Advancements in Reverse Phase HPLC and UV-Visible Methods for Active Pharmaceutical Ingredients. (2019). Journal of Advances and Scholarly Researches in Allied Education, 16(6), 1514-1519. https://ignited.in/index.php/jasrae/article/view/11587