Padmanabha Reddy, Y., et al. “Simultaneous Determination of Niacin and Lovastatin in Tablet Dosage Form by Reverse Phase HPLC”. Asian Journal of Chemistry, vol. 23, no. 11, Sept. 2011, pp. 5123-6, https://asianpubs.org/index.php/ajchem/article/view/11051.