http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Gồm những câu hỏi - đáp làm sáng rõ, bổ sung, cập nhật những thông tin trong nội dung kiến thức địa lí kinh tế - xã hội thế giới ở lớp 10
Nguyễn Minh Tuệ, Nguyễn Đức Vũ, Phạm Thu Phương
Study and teaching (Secondary),Dạy và học (trung học)