Duklim, B., and S. Musigrungsi. “Oral Presentation Performance and Strategies Employed by Students in an International Classroom Context”. Journal of Social Sciences and Humanities Research in Asia, vol. 24, no. 1, June 2018, pp. 39-74, https://so05.tci-thaijo.org/index.php/psujssh/article/view/127909.