“Derivation of Mathematical Equations to Calculate the Geographical Coordinates of Unknown Position Situated at a Distance from the Observer Position Using GPS Data”, IHJPAS, vol. 27, no. 1, pp. 154–160, Apr. 2017, Accessed: May 02, 2024. [Online]. Available: https://jih.uobaghdad.edu.iq/index.php/j/article/view/373