Zannrni, Imadin M., and Laila B. Shareef. “The Effectiveness of Politeness Achievements on Students’ Academic Performance”. Cihan University-Erbil Journal of Humanities and Social Sciences, vol. 7, no. 1, June 2023, pp. 115-20, doi:10.24086/cuejhss.v7n1y2023.pp115-120.