Hamedani, G.G., et al. “Remarks on the Papers by Coelho-Barros et Al. (2017), Usman et Al. (2021) and Obeid and Kadry (2022)”. Pakistan Journal of Statistics and Operation Research, vol. 18, no. 3, Sept. 2022, pp. 747-8, https://doi.org/10.18187/pjsor.v18i3.4180.