Oswara RM, Rahmawati D. An Educational Study on the Impact of Ground Control Point (GCP) Quantity and Distribution on Orthophoto Geometric Accuracy in UAV Mapping. <meta name="google-site-verification" content="hk1EvV2s9SCchFUV_4f7GgLdW5pQDckkxwSCWkj4stU" /> [Internet]. 2026 Mar. 24 [cited 2026 Mar. 27];4(1):493-500. Available from: https://journal.civiliza.org/index.php/gej/article/view/1364