Baha Alwan, Elaf, and Omar Abdulmohsin Ali. “About Semi-Parametric Methodology for Fuzzy Quantile Regression Model Estimation: A Review”. Journal of Economics and Administrative Sciences 29, no. 138 (March 5, 2024): 127–146. Accessed May 2, 2025. https://www.jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/3044.