Ali, K. ., and N. . Ireeq. “The Reality Use of Printed Learning Resources and Its Role in Serving the Scientific Research from the View Point of the Postgraduate Students-A Field Study at Tishreen University-”. Tishreen University Journal- Arts and Humanities Sciences Series, vol. 40, no. 1, Feb. 2018, https://journal.tishreen.edu.sy/index.php/humlitr/article/view/3628.