1.
الدين ضياء الدين سعيد س. New Ratio Estimators in Simple Random Sampling Using (K) Factor. IQJOSS [Internet]. 2010 Jun. 1 [cited 2025 Sep. 5];10(1):195-206. Available from: https://ojs.uomosul.edu.iq/index.php/stats/article/view/29120