P. KA, M.S. R, V.S. AD. Investigation of Ketotifen Fumarate in Pharmaceuticals Using Iron (III) Chloride and Two Chelating Agents – Spectrophotometerically. Psychosocial rehabilitation [Internet]. 2020 Jul. 31 [cited 2025 Jun. 16];24(5):6858-67. Available from: https://www.psychosocial.com/index.php/ijpr/article/view/5673