Dilpriya, T. A. H., G. H. J. Lanel, and B. V. N. C. Vidanage. “A Strategy to Strengthen and Enhance the Telecommunication Network in Sri Lanka by Using Concepts of Graph Theory and Linear Programming Models”. International Journal of Natural Sciences Research, vol. 10, no. 1, Jan. 2022, pp. 1-20, doi:10.18488/63.v10i1.2913.