http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Lí thuyết và ứng dụng (Sách dùng cho các trường đào tạo hệ Trung học chuyên nghiệp)
Nguyễn Thúc Hà, Bùi Văn Hạnh, Võ Văn Phong