DanbattaK. and Dan-IsaA. 2022. OPTIMUM DIMENSIONING OF INTERCONNECTIONS BETWEEN SOME GSM OPERATORS IN NIGERIA USING ERLANG B MODEL. FUDMA JOURNAL OF SCIENCES. 5, 4 (Feb. 2022), 285 - 290. DOI:https://doi.org/10.33003/fjs-2021-0504-831.