Shakir Hameed, Asaad, Burhanuddin Mohd Aboobaider, Ngo Hea Choon, Modhi Lafta Mutar, and Wassim Habib Bilal. 2018. “Review on the Methods to Solve Combinatorial Optimization Problems Particularly: Quadratic Assignment Model”. International Journal of Engineering & Technology 7 (3.20): 15-20. https://doi.org/10.14419/ijet.v7i3.20.18722.