http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Tài liệu học tiếng Anh trình độ trung cấp - cao cấp. Sách cung cấp hệ thống ngữ pháp, từ vựng theo chủ đề kèm bài tập và đáp án, giúp người học ôn luyện hiệu quả cho kỳ thi B2
Malcolm Mann, Steve Taylore-Knowles ; Nguyễn Thanh Vân (Dịch)