Sohrabi, M.R., et al. “Simultaneous Spectrophotometric Determination of Mefenamic Acid and Paracetamol in Pharmaceutical Preparation by Using Artificial Neural Network”. Asian Journal of Chemistry, vol. 17, no. 1, Mar. 2016, pp. 117-24, https://asianpubs.org/index.php/ajchem/article/view/19721.