Sahera Hussein Zain AL–Thalabi, Dr. Ali Akbar Heydari 2022. Use Semi-Parametric and Non-Parametric Models with Missing Values / With Practical Application. Mathematical Statistician and Engineering Applications. 71, 4 (Sep. 2022), 2452–2462. DOI:https://doi.org/10.17762/msea.v71i4.805.