@unpublished{ITNYREPOID4044,
          author = {Erry Sumarjono},
           title = {Bukti review korespondensi: Kontaminasi Merkuri Pada Air Tanah Di Dusun Sangon II, Kalirejo, Kokap, Kulonprogo, Daerah Istimewa Yogyakarta},
       publisher = {ITNY},
             url = {https://repository.itny.ac.id/id/eprint/4044/}
}