“Estimation of a Multivariate Non-Parametric Regression Function of a Non-Normal Distributions by Using Kernel Smoothing”. 2024. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 54 (1): 1-10. https://doi.org/10.55562/jrucs.v54i1.571.