Demirel, Oğuzhan, Leyla Aslan, and Damla TOPAL. “A New Proof of the Lester’s Perimeter Theorem in Euclidean Space”. Mathematical Journal of Interdisciplinary Sciences 8, no. 2 (March 30, 2020): 57–59. Accessed April 20, 2024. https://mjis.chitkara.edu.in/index.php/mjis/article/view/205.