M. Saro, Jeffry, Jeffrey Apat, and John Mark Sarongon. “Composition and Diversity Variation of Ferns (Pteridophyta) at Barangay San Rafael, Prosperidad, Agusan Del Sur Philippines: Distribution and Conservation Status”. American Journal of Agricultural Science, Engineering, and Technology 6, no. 3 (September 19, 2022): 10–15. Accessed April 26, 2024. https://journals.e-palli.com/home/index.php/ajaset/article/view/572.