SURENDRA, K., et al. “Simultaneous Estimation of Levofloxacin Hemihydrate and Ornidazole in Tablet Dosage Form by HPTLC”. Asian Journal of Chemistry, vol. 19, no. 7, Mar. 2010, pp. 5647-51, https://asianpubs.org/index.php/ajchem/article/view/13180.