http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hướng dẫn học và ôn tập qua các câu hỏi tự luận và bài tập trắc nghiệm
Sách hướng dẫn người học từng bước lĩnh hội kiến thức thông qua việc luận giải, trả lời câu hỏi lý thuết và thực hành giải bài tập. Phần đáp án và gợi ý trả lời có lựa chọn giải đáp, hướng dẫn một số câu hỏi, bài tập.