Analysis of E-book Use: The Case of ebrary. - Umut Al; Irem Soydal; Yasar Tonta (ELPUB, 2010)

Are Turkish universities ready for e-learning: A case of Hacettepe University Faculty of Letters. - Irem Soydal; Gülten Alir; Yurdagül Ünal (Inf. Serv. Use, 2011)

Are Turkish Universities Ready for E-learning: A case of Hacettepe University. - Irem Soydal; Yurdagül Ünal; Gülten Alir (ELPUB, 2012)

Publication lag and early view effects in information science journals. - Umut Al; Irem Soydal (Aslib J. Inf. Manag., 2017)