خضر نصيف ألبياتي (2024) “An analytical and historical comparison between the standard deviation and the average deviation - an applied study on premature infants in Kirkuk Governorate”, Iraqi Journal for Administrative Sciences. كربلاء، جمهورية العراق, 13(51), pp. 298–278. Available at: https://mail.journals.uokerbala.edu.iq/index.php/ijas/article/view/2610 (Accessed: 4 April 2025).