http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Cổ Loa trung tâm hội tụ văn minh sông Hồng
Hoàng Văn Khoán; Lại Văn Tới; Nguyễn Lâm Anh Tuấn