J. Ackora Prah, V. Acheson, B. Barnes, I. Takyi, and E. Owusu-Ansah, “A 2-Phase Method for Solving Transportation Problems with Prohibited Routes”, Pak.j.stat.oper.res., vol. 18, no. 3, pp. 749–758, Sep. 2022, doi: 10.18187/pjsor.v18i3.3911.