Ù…Ø³Ø¹ÙˆØ¯, Ù., & Ù…Ø³Ø¹ÙˆØ¯, Ù. (2016). Ø£Ø«Ø± Ø§Ù„Ø¬Ø¨Ø§ÙŠØ© Ø§Ù„Ø¨ÙŠØ¦ÙŠØ© ÙÙŠ Ø§Ù„ØØ¯ Ù…Ù† Ø§Ù„ØªÙ„ÙˆØ« Ø§Ù„Ø¨ÙŠØ¦ÙŠ ÙÙŠ Ø§Ù„Ø¬Ø²Ø§Ø¦Ø±. Gezira Journal Of Economic And Social Sciences, 7(1). Retrieved from http://37.60.236.48/index.php/gjess/article/view/532