GACHA, DAYANNA CABRA, et al. “Objective: Antifungal Activity of Total Ethanolic Extract and Fractions of Usnea Varieties Were Proved Against Aspergillus Niger, Penicillium Digitatum, and Rhizopus Nigricans Fungi. Methods: To Perform the Study of Relative Antifungal Activity (AFR), Flu”. Asian Journal of Pharmaceutical and Clinical Research, vol. 13, no. 10, Oct. 2020, pp. 171-4, doi:10.22159/ajpcr.2020.v13i10.38962.