Pertiwi, M.D. et al. 2024. Improving the Ability of Smkn 1 Bukittinggi Students Majoring in Geomatics Engineering to Use the Global Navigation Satellite System (GNSS). Sumatra Journal of Disaster, Geography and Geography Education. 7, 2 (Jan. 2024), 15–18. DOI:https://doi.org/10.24036/sjdgge.v7i2.539.