WASET
Azam, S. , Masood-ur-Rehman, M. , Bhatti, A. , Daudpota, N.. "Parallel Branch and Bound Model Using Logarithmic Sampling (PBLS) for Symmetric Traveling Salesman Problem". World Academy of Science, Engineering and Technology, Open Science Index 6, International Journal of Computer and Information Engineering, (2007), 1(6), 1752 - 1755.