Nabhan, Mohamed B. W., and Ebrahim K. Seddiq. “Study in Reduction of Vortex Drag at Low Cruising Aircraft Speeds”. Journal of Advance Research in Mechanical and Civil Engineering (ISSN: 2208-2379) 5, no. 10 (October 31, 2018): 01–12. Accessed September 20, 2024. http://13.234.107.90/index.php/MCE/article/view/298.