Irene , S. ., P. Persadanta, and W. . Adrian. “AIRPORT PLAN TOPOGRAPHIC EXAMINATION: ACCURACY ANALYSIS BY DEMNAS AND ASTER GDEM METHOD IN TERRESTRIAL SURVEYS”. Journal of Airport Engineering Technology (JAET), vol. 4, no. 1, Dec. 2023, pp. 12-21, doi:10.52989/jaet.v4i1.116.