http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Longman preparation course for the TOEFL tests : Companion to skills and strategies Volume A
Deborah Phillips ; Chú giải: Lê Hiền Thảo, Nguyễn Văn Phước, Ban biên dịch First News .