Ulum, Fuad, AND 		Setyati, Dwi.
" Tree Ferns of C. contaminans and C. orientalis from  Biosite Erek-erek Geoforest of Ijen Geopark, Banyuwangi" <em>BERKALA SAINSTEK</em> [Online], Volume 10 Number 3 (4 October 2022)