http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Phạm Thế Long, Nguyễn Xuân Viên, Nguyễn Thiện Luân, Nguyễn Đức Hiệu
Bộ GD & ĐT. Dự án đào tạo giáo viên trung học cơ sở