Wikandaru, R.; Ketut Gunawan; Anton Sudiyanto; Edy Nursanto; Tedy Agung Cahyadi; Yudha Krisna Suhendra; Rizky Ikhsan Luthfian Noor. Analysis The Effect of Drone Flying Altitude On The Geometry Accuracy Of Photo Map. Prosiding Seminar Nasional ReTII 2019, 143-151.