@unpublished{repository9344,
       publisher = {UHAMKA},
           title = {Artikel Jurnal Ferns IOP Pteridophyta},
            note = {Unpublished},
          author = {Yarza, Husnin Nahry and Susilo, Susilo},
             url = {http://repository.uhamka.ac.id/id/eprint/9344/}
}