@unpublished{repository53420,
       publisher = {-},
           title = {Buku petunjuk praktikum Spermatophyta},
            note = {Unpublished},
          author = {Maryanti Setyaningsih, Maryanti Setyaningsih},
             url = {http://repository.uhamka.ac.id/id/eprint/53420/}
}