Abrori, F. M., and A. Adhani. “Developing an Atlas Based on Frond Venation Patterns Analysis of Polypodiales in Tarakan”. JPBI (Jurnal Pendidikan Biologi Indonesia), vol. 3, no. 3, Nov. 2017, pp. 222-31, doi:10.22219/jpbi.v3i3.4816.