Embergenov A.B., Umaraliyev Sh.M.,Eshonov F.F. Tashkent State transport University. “4.4 TOPOGRAPHIC SURVEY USING A QUADCOPTER”. International Shine-AEB Scientific Journal, vol. 1, no. 4, Feb. 2025, pp. 20-24, https://shine-aeb.uz/index.php/current/article/view/125.