Amer Rajab, Musaab, and Mohammed Sadeq Abdul.Razaq. “Using Some Estimation Methods for Mixed-Random Panel Data Regression Models With Serially Correlated Errors With Application”. Journal of Economics and Administrative Sciences 28, no. 134 (December 31, 2022): 96–109. Accessed May 1, 2025. https://www.jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/2423.