“Estimating the Multiple Regression Model Using the Bootstrap Method to Study the Effect of Environmental Wastes on the Waters of the Euphrates River”. 2024. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 54 (1): 107-24. https://doi.org/10.55562/jrucs.v54i1.581.