Abd Al-Aziz Al-Talib, B., and F. M. Selevany. “Robust Weighted Least Squares Method Using Different Schemes of M-Estimators (RWLSM), A Comparative Study”. IRAQI JOURNAL OF STATISTICAL SCIENCES, vol. 21, no. 1, June 2025, pp. 32-45, https://rjps.uomosul.edu.iq/index.php/stats/article/view/20588.