Giri, Tapan. “Simultaneous Equation Method for Simultaneous Estimation of Paracetamol and Ibuprofen in Combined Dosage Form”. International Journal of Pharmaceutical & Biological Archive 1, no. 2 (June 5, 2010). Accessed July 27, 2024. http://ijpba.info/index.php/ijpba/article/view/56.