Ù…Ø«Ù†Ù‰ ØØ³Ù†, Ø., Ø¹Ù„ÙŠ Ø¹ÙŠØ³Ù‰, Ø., & ØÙ…Ù‡ ØµØ§Ù„Ø Ù…ØµØ·ÙÙ‰, Ø. 2018 Oct 1. ØªØ£Ø«ÙŠØ± Ù†ÙˆØ¹ÙŠÙ† Ù…Ù† Ø§Ù„Ù‚Ø±Ø§Ø¯ ÙˆØ§Ù„Ù‚Ù…Ù„ Ø¹Ù„Ù‰ Ø¨Ø¹Ø¶ Ø§Ù„Ù…Ø¹Ø§ÙŠÙŠØ± Ø§Ù„Ø¯Ù…ÙŠØ© ÙÙŠ Ø§Ù„Ù…Ø§Ø¹Ø² Ø§Ù„Ø£Ø³ÙˆØ¯ Ø®Ù„Ø§Ù„ Ù…ÙˆØ³Ù…ÙŠ Ø§Ù„Ø±Ø¨ÙŠØ¹ ÙˆØ§Ù„ØµÙŠÙ ÙÙŠ Ù…ØØ§ÙØ¸Ø© Ø§Ù„Ø³Ù„ÙŠÙ…Ø§Ù†ÙŠØ©-ÙƒÙˆØ±Ø¯Ø³ØªØ§Ù† Ø§Ù„Ø¹Ø±Ø§Ù‚. Tikrit Journal of Pure Science. [Online] 21:4