Hibstu, T., E. Gabreyohannes, and E. Wencheko. “The Performance of Alternative General Method of Moment Estimators with Application to Employment Panel Data Model”. SOUTHEAST ASIAN JOURNAL OF ECONOMICS, vol. 13, no. 1, Mar. 2025, pp. 1-34, https://so05.tci-thaijo.org/index.php/saje/article/view/269617.