Dam, Phap2014-02-032014-02-032006-12-01Dam, Phap. "Analyzing some persistent errors in English made by Vietnamese speakers." <i>Critical issues in the Education of English Language Learners</i>. Ed. Dam and Cowart. CANH NAM Publishers, Inc., 2006. 186-196. Print.0977212963http://hdl.handle.net/11274/132en-USArticle