Ø¹Ø¨Ø¯Ø§Ù„Ù„Ù‡, Ø., & ÙˆÙŠØ³, Ø. 2018 Oct 10. Ø§Ù„ØªÙ‚ÙŠÙŠÙ… Ø§Ù„Ø¬ÙŠÙˆØªÙƒÙ†ÙŠÙƒÙŠ Ù„ØªØ±Ø¨Ø© Ù†Ø§ØÙŠØ© ÙŠØ§ÙŠØ¬ÙŠ/ ÙƒØ±ÙƒÙˆÙƒ/ Ø´Ù…Ø§Ù„ Ø§Ù„Ø¹Ø±Ø§Ù‚. Tikrit Journal of Pure Science. [Online] 21:7