A. Purba, T. Nasution, M. K. Matondang, Z. Zulkarnain, and R. Purba, “APPLICATION OF BROWN AND LEVINSON’S MODEL ON JOE BIDEN’S VICTORY SPEECH: A CASE ON POLITENESS STRATEGY”, ERJEE, vol. 11, no. 1, pp. 75-82, Feb. 2023.