http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
investigation on some cultural differences in social contacts between Vietnam and some countries it has relations with
Đinh Thị Mai Vinh, Trương Thị Ngọc Khánh thực hiện ; Nguyễn Thị Tuyết hướng dẫn.