http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Trình bày những kiến thức, yếu tố căn bản thiết thực về sử dụng modem, cơ sở kỹ thuật và hệ thống của modem.
Nguyễn Hồng Sơn, Hoàng Đức Hải,