Sartika S, Fauziati E, Marmanto S, Jazadi I. Comparative Study on Refusal Strategy between American English Native Speakers and Indonesian EFL Learners. VELES [Internet]. 2020 Apr. 24 [cited 2024 Jul. 3];4(1):75-8. Available from: https://e-journal.hamzanwadi.ac.id/index.php/veles/article/view/2006