Gupta, C., et al. “Comparative Study of Cinnamon Oil and Clove Oil in Some Oral Microbiota”. Acta Biomedica Atenei Parmensis, vol. 82, no. 3, Feb. 2012, pp. 197-9, https://mattioli1885journals.com/index.php/actabiomedica/article/view/1729.