HUTAHAEAN, H. D.; ALI AKBAR LUBIS; ROSMA SIREGAR. Geographic Information System for Tourism in Dairi Regency with Circular Method. Instal : Jurnal Komputer, [S. l.], v. 17, n. 10, p. 630–633, 2025. DOI: 10.54209/jurnalinstall.v17i10.445. Disponível em: https://journalinstal.cattleyadf.org/index.php/Instal/article/view/445. Acesso em: 30 apr. 2026.