ØÙ…Ø¯ Ù‡Ø§Ø¯ÙŠ Ø§Ù„Ø³Ø¹ÙŠØ¯ÙŠ, Ø., & Ù…ØÙ…Ø¯ Ù‡Ù„Ø§Ù„ Ø§Ù„Ø¹Ø¨ÙŠØ¯ÙŠ, Ù. 2018 Oct 1. ØªØ£Ø«ÙŠØ± Ø§Ù„ØªÙ‡Ø§Ø¨ Ø§Ù„Ø®Ù„Ø¨ ÙˆØ§Ù„Ø´Ø¨ÙƒÙŠØ© Ø§Ù„ÙƒÙ„Ù…ÙŠ ÙÙŠ Ø§Ù„Ø§Ø¨Ù‚Ø§Ø± Ø§Ù„Ù…ØÙ„ÙŠØ© Ø¹Ù„Ù‰ Ø¨Ø¹Ø¶ Ø§Ù†Ø²ÙŠÙ…Ø§Øª ÙˆØ¨Ø±ÙˆØªÙŠÙ†Ø§Øª Ø§Ù„ÙƒØ¨Ø¯. Tikrit Journal of Pure Science. [Online] 21:4