http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Cuốn sách được biên soạn dựa trên giáo trình "Số học" của Nguyễn Tiến Tài và giáo trình "Đại số và số học" của Ngô Thúc Lanh. Nội dung bao gồm phần Bài tập và lời giải, kèm theo phần tóm tắt lý thuyết của bài tập đó.