Taha, Mushreq Luay, Belal Al-Khateeb, Yasser F. Hassan, Ossama M.M. Ismail, and Ossama Abu Rawash. 2020. “Solving Competitive Traveling Salesman Problem Using Gray Wolf Optimization Algorithm”. Periodicals of Engineering and Natural Sciences 8 (3): 1331-44. https://doi.org/10.21533/pen.v8.i3.1169.