Hamedani G, Ghosh I, Saghir A. Remarks on the Papers by Coelho-Barros et al. (2017), Usman et al. (2021) and Obeid and Kadry (2022). Pak.j.stat.oper.res. [Internet]. 2022Sep.10 [cited 2025Aug.1];18(3):747-8. Available from: https://pjsor.com/pjsor/article/view/4180