Seftyan Nugroho, Yafet. “The Illocutionary Acts Of Written Conversation In Eleventh Grade Senior High School Students’ Textbook : Modul Pengayaan Bahasa Dan Sastra Inggris Peminatan Semester 2”. Jurnal Sosial Teknologi 1, no. 12 (December 15, 2021): 1.588 – 1.594. Accessed April 25, 2024. https://sostech.greenvest.co.id/index.php/sostech/article/view/265.