J. M. Villanueva, M. A. V. Arugay, and R. Z. H. Ramos, “In Vitro Antimycotic Activity of Four Medicinal Plants Versus Clotrimazole in the Treatment of Otomycosis: A Preliminary Study”, Philipp J Otolaryngol Head Neck Surg, vol. 23, no. 1, pp. 5–8, Jun. 2008.