Kurniawan, S., and M. N. . Cahyadi. “TILIZATION F NMANNED ERIAL EHICLE (UAV) OR EASUREMENT F URFACE OAL INING ITUATION”. ournal of arine-arth cience and echnology, vol. 3, no. 2, Jan. 2023, pp. 29-34, doi:10.12962/j27745449.v3i2.576.