Saleh, K. ., and M. . Melhem. “Analysis of Reference Citations in the Doctoral Theses Granted by the Faculty of Economics, Tishreen University from 2007 to 2015: A Bibliometric Study”. Tishreen University Journal- Arts and Humanities Sciences Series, vol. 38, no. 3, Feb. 2017, https://journal.tishreen.edu.sy/index.php/humlitr/article/view/2474.