Zhang, Y., et al. “Analysis of Ferulic Acid, Rosemarinic Acid and Caffeic Acid in Rosmarnus Officinalis L. By Capillary Zone Electrophoresis”. Asian Journal of Chemistry, vol. 27, no. 6, Mar. 2015, pp. 2154-6, doi:10.14233/ajchem.2015.17894.