http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Tổng hợp Tp. Hồ Chí Minh; Công ty Nhân Trí Việt
Giáo trình được chia thành hai cấp độ, mỗi cấp độ gồm một sách bài học và một sách bài tập. Các cấp độ được thiết kế theo sát Khung tham chiếu năng lực ngoại ngữ chung châu Âu (CEFR). Bảng dưới đây thể hiện các cấp độ CEFR và mức điểm tương ứng của các kỳ thi tiếng Anh phổ biến.
Thomas Booth, Trish Burrow; Lê Huy Lâm