et. al, M. S. “1 GM–FIID ESTIMATOR AS REMEDIAL MEASURE OF HETEROSCEDASTICITY CAUSED BY OUTLYING OBSERVATIONS IN MULTIPLE LINEAR REGRESSION”. International Journal of Advanced Science and Technology, Vol. 29, no. 2, Jan. 2020, pp. 1353 -61, http://sersc.org/journals/index.php/IJAST/article/view/3375.