“An Analysis of Lexical Collocation Errors in Academic IELTS Writing Task 2 by Vietnamese Students in an English Center”. The International Journal of Language Studies (ISSN : 3078 - 2244) 2, no. 2 (May 10, 2025): 31–54. Accessed September 22, 2026. https://ijlangstudies.org/index.php/home/article/view/v2.n2.004.