http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Theo giáo trình Hán ngữ Boya sơ cấp 1 Tập viết chữ Hán
Đinh Bích Thảo ;Nguyễn Thị Thanh Lan (ch.b)