“Intrafamilial Pinna Shape Variations of Fern Species Under Family Thelypteridaceae and Nephrolepidaceae Using Elliptic Fourier Analysis”. Journal of Informatics and Mathematical Sciences 9, no. 4 (December 30, 2017): 1087–1093. Accessed May 13, 2026. https://www.rgnpublications.com/journals/index.php/jims/article/view/1010.