Ali Al-Isawi, Jasim .Mohammed, and Abdulhussein .Saber Al-Mouel. “On Quadratic Unbiased Estimator for Variance Components of One-Way Repeated Measurements Model”. Journal of Al-Qadisiyah for Computer Science and Mathematics 11, no. 3 (September 4, 2019): Stat Page 12–23. Accessed November 14, 2024. https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/582.