An Empirical Investigation into the Estimation of Fixed Effects Models in Balanced Panel Data Sets with Heteroskedastic Errors and Serial Correlation Using Maximum Likelihood Techniques. ACSAET [Internet]. 2025 May 4 [cited 2025 Sep. 20];10(5):1-20. Available from: https://csadvances.com/index.php/ACSAET/article/view/2025-05-04