Hidayatillah, A., Subyantoro, S., & Haryadi, H. (2021). Types of Defamation Speech Acts on social media Instagram, Twitter, and Facebook in 2017-2019. Seloka: Jurnal Pendidikan Bahasa Dan Sastra Indonesia, 10(2), 150-159. https://doi.org/10.15294/seloka.v10i2.45647