@unpublished{ITNYREPOID3324,
          author = {Listiyani Retno Astuti},
           title = {Similarity: Studi Hidrogeologi Isotopik Daerah Ngablak-Pakis, Magelang Jawa Tengah Berdasarkan Isotop Stabil D Dan O-18},
       publisher = {ITNY},
             url = {https://repository.itny.ac.id/id/eprint/3324/}
}