Adam Lishan (PhD)Gudeta Zewdie2020-10-132023-11-182020-10-132023-11-182000http://etd.aau.edu.et/handle/12345678/22689enInformation ScienceCard Catalogue Use Problems in Addw Ababa University Main Library: A Study to Devise Computer Based Guide to the Use of the Existing Ac Cess Tools to The Holdings of the LibraryThesis