AbdulazeezYaya, J., C. EurielUzohue, and O. A. Akintayo. “The Correlational Analysis of Motivation and Productivity of Librarians in Public Universities in Nigeria”. IJRDO- Journal of Educational Research, Vol. 1, no. 6, Sept. 2016, pp. 15-32, doi:10.53555/er.v1i6.555.