Focusing on IELTS : Listening and speaking skills = Tài liệu luyện thi IELTS : Kỹ năng nghe và nói - O'Sullivan, Kerry; Thurlow, Steven; Nguyễn Thành Yến (Tp.HCM : Nxb Tp.HCM, 2003)
Keywords: English language; Foreign speakers; International English language Testing system; International English Language Testing System -- Study guides; Regression analysis; English language -- Textbooks for foreign speakers