http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Giáo trình thực hành lạnh cơ bản
Trường Cao đẳng Kỹ thuật Cao Thắng
Trần Minh Trí, Trần Hữu Thương Tín