Sri Rahayu, M. F., Rustono, R. and Haryadi, H. (2022) “Violation of Cooperation Principle in the Discourse of Student WhatsApp Groups at Vocational High School PIKA Semarang”, Seloka: Jurnal Pendidikan Bahasa dan Sastra Indonesia, 11(1), pp. 68-80. doi: 10.15294/seloka.v11i2.55951.