http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
350 bài tập hóa học chọn lọc và nâng cao lớp 11
Chỉnh lí, bổ sung theo sách giáo khoa hóa học 11 nâng cao. Bài tập tự luận - Bài tập trắc nghiệm
Problems, exercises, etc.,Câu hỏi, bài tập