Estimating A Semi - Parametric Partial Linear Regression Model with Different Estimation Methods with Incomplete Data. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ), [S. l.], v. 46, n. 1, p. 259–272, 2021. DOI: 10.55562/jrucs.v46i1.80. Disponível em: https://jrucs.iq/index.php/JAUCS/article/view/80. Acesso em: 28 oct. 2025.