Al-Tai, Aws Adnan, and Qutaiba N. Nayef Al-Kazaz. “Semi Parametric Estimators for Quantile Model via LASSO and SCAD With Missing Data”. Journal of Economics and Administrative Sciences 28, no. 133 (September 30, 2022): 82–96. Accessed March 28, 2025. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/2351.