Umoren, Eboro E., and Godswill Okon. “Roles of Librarians in Preservation and Conservation of Information Resources in the Nigerian University Libraries: World Atlas Journal of Library and Information Science, Vol. 4, No. 2”. Afrischolar Discovery Repository (Annex), Aug. 2020, pp. 19-31, https://doi.org/10.60951/afrischolar-446.