"Windows are proposed to pave the spectrum estimates Allanhaddar self-dual variables " (2009) Al Kut Journal of Economics and Administrative Sciences, 1(1), ص 63–77. موجود في: https://kjeas.uowasit.edu.iq/index.php/kjeas/article/view/4 (تاريخ الوصول: 1 سبتمبر 2026).