http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Thành ngữ, tục ngữ ca dao dân tộc Tày
Hoàng Triều Ân, Hoàng Quyết ( s.t, b.s)
ĐTTS ghi: Hội văn nghệ dân gian Việt Nam