Mubarak, A. S., and K. K. Rhaif. “Investigating Pragma-Rhetorical Strategies Utilized by American Commencement Speakers to Motivate Graduates for Managing Future Opportunities and Challenges”. Linguistics and Culture Review, vol. 5, no. S1, Aug. 2021, pp. 342-6, doi:10.21744/lingcure.v5nS1.1399.