Ariyanto, J., R. Syamsidar, J. Juswandi, H. Hermanysah, and F. Elia. “Pragmatic Elements in English As a Foreign Language (EFL) Textbooks in Senior High Schools of Pekanbaru”. INTERACTION: Jurnal Pendidikan Bahasa, Vol. 11, no. 2, Oct. 2024, pp. 403-14, doi:10.36232/jurnalpendidikanbahasa.v11i2.7100.