Riasari , Evi, Syarifuddin Dollah, and Kisman Salija. “An Analysis on Speech Styles Used by English Lecturers”. Celebes Journal of Language Studies 1, no. 2 (December 4, 2021): 185-197. Accessed May 2, 2026. https://harpressid.com/CJLS/article/view/61.