Anam, M. S., Rokhman, F., & Indiatmoko, B. (2019). Assertive Speech Acts between Telecommunication Call Center with Customers: Study of Pragmatic. Seloka: Jurnal Pendidikan Bahasa Dan Sastra Indonesia, 8(2), 57-62. https://doi.org/10.15294/seloka.v8i2.33236