Syifa, Ari Muhammad, Dasril Davidra, and Almira Fidela Artha. 2023. “The Politeness Levels of Thanking and Apologizing: A Corpus Linguistic Investigation Across Generations in the Movies”. Diglossia: Jurnal Kajian Ilmiah Kebahasaan Dan Kesusastraan 15 (1):49-62. https://doi.org/10.26594/diglossia.v15i1.4055.