http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hướng dẫn học Headway intermediate
A multi-level course, supported by a broad range of supplementary material, which targets both accuracy and fluency in all four language skills.
John Soars, Liz Soars ; Nguyễn Thanh Yến, Nguyễn Trung Tánh, Lê Huy Lâm (Dịch và chú giải)
Sách giáo khoa cho người nước ngoài,Textbooks for foreign speakers