Ø§ØÙ…Ø¯, Ø., Ø§Ø¯Ù…, Ø., & Ø§ØÙ…Ø¯, Ø. (2014). Ø§Ø³ØªØ®Ø¯Ø§Ù… Ø§Ù„Ø¯Ø§Ù„Ø© Ø§Ù„ØªÙ…ÙŠÙŠØ²ÙŠØ© Ø§Ù„Ø®Ø·ÙŠØ© Ù„ØªÙ…ÙŠÙŠØ² Ø§Ù„Ø£Ø·ÙØ§Ù„ Ø§Ù„Ù…ØµØ§Ø¨ÙŠÙ† Ù…Ù† ØºÙŠØ± Ø§Ù„Ù…ØµØ§Ø¨ÙŠÙ† Ø¨Ù…Ø±Ø¶ Ø§Ù„Ø³ÙƒØ±ÙŠ Ø¨Ù…Ø³ØªØ´ÙÙ‰ ÙˆØ¯ Ù…Ø¯Ù†ÙŠ Ù„Ù„Ø£Ø·ÙØ§Ù„ØŒ ÙˆÙ„Ø§ÙŠØ© Ø§Ù„Ø¬Ø²ÙŠØ±Ø©ØŒ Ø§Ù„Ø³ÙˆØ¯Ø§Ù† (2014). Gezira Journal Of Economic And Social Sciences, 5(1). Retrieved from http://37.60.236.48/index.php/gjess/article/view/275