@unpublished{ITNYREPOID3418,
           title = {Bukti Review Korespondensi : Geochemical of Karst Water in Westernpart of Gunungkidul District Area},
          author = {Listiyani Retno Astuti},
       publisher = {ITNY},
             url = {https://repository.itny.ac.id/id/eprint/3418/}
}