J. M. Saro, J. . Apat, and J. M. . Sarongon, “Composition and Diversity Variation of Ferns (Pteridophyta) at Barangay San Rafael, Prosperidad, Agusan Del Sur Philippines: Distribution and Conservation Status”, Am. J. Agric. Sci. Eng. Technol., vol. 6, no. 3, pp. 10–15, Sep. 2022.