Authors
Hassan hussain Alshahmani,E and Khalf Awad,M . (2010). . AL-Qadisiyah Journal For Administrative and Economic sciences, 11(4), 252-263.
Hassan hussain Alshahmani,E , and Khalf Awad,M . "", AL-Qadisiyah Journal For Administrative and Economic sciences, 11, 4, 2010, 252-263.
Hassan hussain Alshahmani E, Khalf Awad M. (2010). '', AL-Qadisiyah Journal For Administrative and Economic sciences, 11(4), pp. 252-263.
E Hassan hussain Alshahmani and M Khalf Awad, "," AL-Qadisiyah Journal For Administrative and Economic sciences, 11 4 (2010): 252-263,
Hassan hussain Alshahmani E, Khalf Awad M. . AL-Qadisiyah Journal For Administrative and Economic sciences. 2010;11(4):252-263.
