Nguyen, Q.K., Vo, N.Q. and To, T.T.L. 2026. Rethinking Band-Level Differences in IELTS Writing Task 2: A Multidimensional Learner-Corpus Analysis. TTU Journal of Science. 1, 3 (Sep. 2026), 104–112. DOI:https://doi.org/10.53901/tjs.2026.v01.issue03.art12.