@unpublished{ITNYREPOID3394,
           title = {Peer review: Stable Isotopes Changes In Groundwater Case Study In Mudal And Clapar Springs, West Progo},
          author = {Listiyani Retno Astuti},
       publisher = {ITNY},
             url = {https://repository.itny.ac.id/id/eprint/3394/}
}