Alwin Fodra Maulion. “Assessment of Corticolous Lichen Diversity in Romblon State University, Main Campus, Odiongan, Romblon”. Global Journal of Science Frontier Research, vol. 21, no. C3, Mar. 2021, pp. 19-38, https://journalofscience.org/index.php/GJSFR/article/view/2972.