P., K. Asha, Raghu M.S., and Anusuya Devi V.S. “Investigation of Ketotifen Fumarate in Pharmaceuticals Using Iron (III) Chloride and Two Chelating Agents – Spectrophotometerically”. International Journal of Psychosocial Rehabilitation 24, no. 5 (July 31, 2020): 6858–6867. Accessed June 11, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/5673.