http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Tây Sơn - Thuận Hóa và anh hùng dân tộc Nguyễn Huệ Quang Trung
Hội khoa học lịch sử tỉnh thừa thiên Huế