http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Văn hóa Đa Bút, các văn hóa tiền sử Việt Nam. Một số vấn đề khảo cổ học Việt Nam.
Xã hội học văn hóa,Nhập môn xã hội học