Na’allah, A., C. Eke, P. Achi, O. Oluwabunmi, et M. Osi. The Economic Efficiency of Android Phone Enabled Modems and Standard Modems in Nigeria: The Case of Abuja. East African Journal of Arts and Social Sciences, Vol. 7, nᵒ 1, June 2024, p. 341-53, doi:10.37284/eajass.7.1.1964.