Hidayatillah, A., Subyantoro, S. and 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), pp. 150-159. doi: 10.15294/seloka.v10i2.45647.