Ø¨Ø¯ÙˆÙŠ, Ù., & Ø§Ù„ØØ§Ø¬, Ù. 2017 Jan 1. Ù…Ø¯Ù‰ Ø§Ø³ØªØ®Ø¯Ø§Ù… Ø§Ù„ØªØ³ÙˆÙŠÙ‚ Ø¨Ø§Ù„Ø¹Ù„Ø§Ù‚Ø§Øª ÙÙŠ Ø§Ù„Ø¨Ù†ÙˆÙƒ Ø§Ù„ØªØ¬Ø§Ø±ÙŠØ© â€“ Ø¨Ù…Ø¯ÙŠÙ†Ø© ÙˆØ¯ Ù…Ø¯Ù†ÙŠ. Gezira Journal of Economic and Social Sciences. [Online] 8:2