http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Nội dung giới thiệu về ý nghĩa của tiếp thị, năm thái độ quyết định thắng lợi, tám cách gây cảm tình của nhà tiếp thị ...