http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Giáo trình kết cấu bê tông cốt thép
Nguyễn Đình Cống (chủ biên), Tạ Thanh Vân, Nguyễn Ngọc Thức