@phdthesis{eprintsunpak305,
           month = {April},
          author = {Ignatius Alberto and Patar Simamora and Dessy Herlisnawati},
            year = {2022},
           title = {Penerapan Sistem Informasi Geografi (GIS)},
          school = {Universitas Pakuan},
             url = {http://eprints.unpak.ac.id/305/}
}