Group Ielts. (2014). Intensive ielts speaking: New oriental education & technolofy group IL-LTS Research Institute. TP.Hồ Chí Minh: Tổng hợp.
Trích dẫn kiểu ChicagoGroup Ielts. Intensive Ielts Speaking: New Oriental Education & Technolofy Group IL-LTS Research Institute. TP.Hồ Chí Minh: Tổng hợp, 2014.
MLA Trích dẫnGroup Ielts. Intensive Ielts Speaking: New Oriental Education & Technolofy Group IL-LTS Research Institute. TP.Hồ Chí Minh: Tổng hợp, 2014.
Warning: These citations may not always be 100% accurate.