METHOD DEVELOPMENT AND VALIDATION OF A FAST AND SENSITIVE HPLC AND UV-VIS SPECTROPHOTOMETRIC TECHNIQUE FOR THE ESTIMATION OF RIVASTIGMINE IN BULK AND FORMULATION. IJFANS [Internet]. 2026 Jan. 1 [cited 2026 Sep. 2];15(1):211-27. Available from: https://ijfans.org/index.php/Journal/article/view/1283