Ismail, Muhammad, et al. “Comparison of Orthomosaic Accuracy Based on Unmanned Aerial Vehicle (UAV) Real Time Kinematic (RTK) Radio and RTK NTRIP in Padang City, West Sumatra”. JURNAL GEOGRAFI, vol. 17, no. 2, Sept. 2025, pp. 332-43, doi:10.24114/jg.v17i2.68287.