Linda, N. C. ., A. P. . Ishoro, E. E. . Aja, O. . Thomas, and E. A. . Echeng. “Diversity Of Epiphytic Ferns in the Cross River National Park, Akamkpa, Nigeria As Indicators of Forest Disturbance”. Scientific Reports in Life Sciences, vol. 3, no. 2, July 2022, pp. 32-51, https://scientific-reports.com/index.php/srls/article/view/55.