ABDULRAHMAN, F. H., KATTAN, R. A. and GILYANA, S. M. (2020) “A COMPARISON BETWEEN UNMANNED AERIAL VEHICLE AND AERIAL SURVEY ACQUIRED IN SEPARATE DATES FOR THE PRODUCTION OF ORTHOPHOTOS”, Journal of Duhok University, 23(2), pp. 52-66. doi: 10.26682/csjuod.2020.23.2.5.