Junianto, Y. “BUFFER ANALYSIS OF THE REACH OF PASSPORT ISSUING SERVICES USING GEOGRAPHIC INFORMATION SYSTEM (GIS) APPLICATIONS (CASE STUDY OF YOUR KUALANAN PASSPORT SERVICE UNIT): ANALISIS BUFFER TERHADAP JANGKAUAN PELAYANAN PENERBITAN PASPOR DENGAN MENGGUNAKAN APLIKASI SISTEM INFORMASI GEOGRAFIS (SIG) (STUDI KASUS UNIT LAYANAN PASPOR KUALANAMU)”. TEMATICS: Technology Management and Informatics Research Journals, vol. 2, no. 2, Apr. 2020, pp. 83-91, doi:10.52617/tematics.v2i2.106.