A. A. Opanuga, H. I. Okagbue, P. E. Oguntunde, S. A. Bishop, and O. P. Ogundile, “Learning Analytics: Issues on the Pupil-Teacher Ratio in Public Primary Schools in Nigeria”, Int. J. Emerg. Technol. Learn., vol. 14, no. 10, pp. pp. 180–199, May 2019.