Liu, Xuan, and Qiang Wang. “A Pragmatic Study on Request Behavior in Instant Message: On Characteristics and Validity”. International Journal of Linguistics, Literature and Translation 6, no. 4 (April 1, 2023): 10–14. Accessed September 27, 2025. https://al-kindipublishers.org/index.php/ijllt/article/view/5084.