Nguyen L, Trinh Phan Thi L. FACTORS INFLUENCING THE SPEECH ACT OF REFUSALS OF OFFERS BY NATIVE SPEAKERS OF AMERICAN ENGLISH AND VIETNAMESE PEOPLE. SJ TTU [Internet]. 2025Apr.15 [cited 2025Apr.16];10(6). Available from: https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/1208