Ahmed MB, Ghaffori AAM. Non -verbal Politeness in English Etiquette Books and Prophetic Sunnah. J Univ Hum Dev [Internet]. 2019 Aug. 5 [cited 2024 Nov. 21];5(3):156-67. Available from: https://journals.uhd.edu.iq/index.php/juhd/article/view/411