Cansaran-Duman, Demet, Demet Cetin, Husniye Simsek, and Nilay Coplu. “Antimicrobial Activities of the Lichens Hypogymnia Vittata, Hypogymnia Physodes and Hypogymnia Tubulosa and HPLC Analysis of Their Usnic Acid Content”. Asian Journal of Chemistry 22, no. 8 (June 16, 2010): 6125–6132. Accessed November 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/11791.