Nugroho, Sigit Prasetyo, Ibnu Rasyid Munthe, and Syaiful Zuhri Harahap. “Deployment of Webgis Spread Location Natural Resources of Labuhanbatu Regency”. Jurnal Mantik 5, no. 1 (April 1, 2021): 104-108. Accessed September 2, 2026. https://www.iocscience.org/ejournal/index.php/mantik/article/view/1278.