“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), pp. 1–10. doi:10.55562/jrucs.v54i1.571.