Muhammed Eisa, Muhammad Iqbal, Hameed Ali, Khazan Sher, Imad Khan. Improved Estimation Of Mean Under Ranked Set Sampling Using Auxiliary Information. Kurd. Stud. [Internet]. 2024 Sep. 17 [cited 2025 Nov. 17];12(5):1060-6. Available from: https://kurdishstudies.net/menu-script/index.php/KS/article/view/3406