“DIVERSITY OF FERNS (PTERIDOPHYTA) WITH DIFFERENT VEGETATION IN FOREST AREAS BUKUM VILLAGE, SIBOLANGIT SUB-DISTRICT”. BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan 11, no. 2 (September 23, 2025): 147–158. Accessed May 25, 2026. https://www.jurnal.ar-raniry.ac.id/index.php/biotik/article/view/19348.