ABSTRACT Zulfanio, Buyung (2022). Investigating of Speech Acts in Oedipus the King Drama Translated by David Grene: Implications of Creative Writing in ELT Materials. An undergraduate thesis. English Education Department. Faculty of Education and Teacher Training, Universitas Tidar. Advisor 1 Moch. Malik Al Firdaus, M.Pd., Advisor 2 Endah Ratnaningsih, M.Pd. Keywords: Implications, Speech Act…