“Spectrophotometric Determination of Chlorpheniramine Maleate and Phenylpropanolamine Hydrochloride in Dosage Forms”. International Current Pharmaceutical Journal 2, no. 5 (April 4, 2013): 97–100. Accessed June 30, 2026. https://www.banglajol.info/index.php/ICPJ/article/view/14436.