Bhattarai, M. .; Basnett, H.; Das, A.; Manna, P.; Chaudhary, D.; Dutta, D.; Shrestha, B. Simultaneous Estimation of Paracetamol, Phenylephrine Hydrochloride and Triprolidine Hydrochloride by Second Order Derivative Spectroscopy. ajc 2019, 31, 2931-2936.