محمد طاهر يونس العبادي محمود. “Using Information of Population in Estimating Parameters of Multiple Regression Models Based on Quantile Regression With Application”. IRAQI JOURNAL OF STATISTICAL SCIENCES 11, no. 1 (June 1, 2011): 233–248. Accessed September 5, 2025. https://ojs.uomosul.edu.iq/index.php/stats/article/view/29036.