Huma Ahmed Hassan, Syed Amer Mahmood, Saira Batool, Areeba Amer, Mareena Khurshid, Hina Yaqub, and Sajjad Ali Gill. “Generation of Digital Surface Model (DSM) USING UAV/ QUADCOPTER”. International Journal of Innovations in Science & Technology, vol. 2, no. 3, Sept. 2020, pp. 89-107, https://journal.50sea.com/index.php/IJIST/article/view/29.