Kakdiya M, Nagapara A, Madiya D, Faldu S. Analytical Method Development and Validation of First Order Derivative Spectrophotometric Method for Simultaneous Estimation of Paracetamol and Propyphenazone in their Combined Pharmaceutical Dosage Form. pt [Internet]. 1May2014 [cited 23Jun.2026];2(5):161-6. Available from: http://www.pharmatutorjournal.com/index.php/pt/article/view/109