Elaibi, Waleed Mohammed. “Branch and Bound Algorithm and an Improvement for Calculating the Nearest Link of Building a Railway Network”. Al-Mustansiriyah Journal of Science 31, no. 4 (December 20, 2020): 114–119. Accessed September 21, 2023. https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/923.