“Study of the Effect of the Number of Check Points on the Evaluation of the Vertical Accuracy of the Free Digital Elevation Model SRTM-1. Case Study: Latakia Governorate”. 2023. Latakia University Journal -Engineering Sciences Series 45 (5): 51-68. https://journal.latakia-univ.edu.sy/index.php/engscnc/article/view/16156.