Jamolzhon Khudaykulovich Djumanov and BafoUsmanovich Khaitov (2021) “VERTICAL LEVELLING BASED ON GIS AND CAD”, International Journal of Advance Scientific Research, 1(04), pp. 8–15. Available at: https://sciencebring.com/index.php/ijasr/article/view/14 (Accessed: 13 February 2026).