Tá, Đỗ Trung, Lê Văn Phùng, and Lê Đắc Kiên. “The Optimal Routing Problem in Vietnam Telecommunication Network”. <i>Journal of Computer Science and Cybernetics</i> 17, no. 1 (August 1, 2012): 46–53. Accessed January 13, 2026. https://vjes.vast.vn/jcc/article/view/2429.