BARCENAS, Jay Mar A.; BECHAYDA, Christine C. Spore-Based Palynological Study of Common Pteridophyte Species in Cagraray Island, Philippines: Grounds for Classification in Lower Taxa. International Journal of Scientific Research in Biological Sciences, [S. l.], v. 9, n. 2, p. 8–16, 2022. Disponível em: https://ijsrbs.isroset.org/index.php/j/article/view/525. Acesso em: 20 may. 2025.