http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Phương pháp giải bài tập lôgic học
Nội dung hướng dẫn những thủ thuật làm bài tập một cách nhanh chóng và chính xác. Mỗi chương được chia thành 3 phần chính: Tóm tắt lý thuyết; Cách giải bài tập; Bài tập thực hành
Vương Tất Đạt, Nguyễn Thị Vân Hà