Purnawati, Purnawati. “The Implication of Teachers’ Question and Feedback to the Students Vocabulary Production: An Analysis of Spoken Discourse of EFL Classrooms Using IRF Model”. Foremost Journal 2, no. 2 (August 31, 2021): 8–15. Accessed May 14, 2025. https://www.ejournal.unis.ac.id/index.php/Foremost/article/view/1738.