http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Câu hỏi bài tập-trắc nghiệm kinh tế vi mô
Nguyễn Như Ý, Trần Thị Bích Dung, Nguyễn Hoàng Bảo, Trần Bá Thọ