Gunawan, Joshua Delbert, and Nani Indrajani Tjitrakusuma. “The Politeness Strategies Found in @kulinersby’s Instagram Account in Promoting Culinary Businesses”. k@ta: A Biannual Publication on the Study of Language and Literature, vol. 23, no. 2, Dec. 2021, pp. 58-68, doi:10.9744/kata.23.2.58-68.