http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Giáo trình thí nghiệm vật liệu xây dựng
Đại học và Trung học chuyên nghiệp
Nguyễn Thúc Tuyên, Nguyễn Tấn Quý