Nguyen, Ly, and Lan Trinh Phan Thi. “FACTORS INFLUENCING THE SPEECH ACT OF REFUSALS OF OFFERS BY NATIVE SPEAKERS OF AMERICAN ENGLISH AND VIETNAMESE PEOPLE”. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 10, no. 6 (April 15, 2025). Accessed April 16, 2025. https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/1208.