http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
English Vocabulary in Use. Pre - intermadiate & Intermediate
Vocabulary reference and practice with answers
Đĩa kèm theo sách ; Two hundred additional interactive exercises to accompany the book
Textbooks for foreign speakers ; English language
Problems, exercises, etc ; Ngôn ngữ Anh
Dành cho người nói tiếng nước ngài ; Tiếng Anh