@unpublished{ITNYREPOID3389,
           title = {Peer review: Chemical Type Variation of Groundwater in Borobudur and Surroundings 
Area, Magelang District},
          author = {Listiyani Retno Astuti},
       publisher = {ITNY},
             url = {https://repository.itny.ac.id/id/eprint/3389/}
}