http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hướng dẫn thực hiện hoạt động giáo dục bảo vệ môi trường cho trẻ mầm non
Tài liệu dành cho giáo viên mầm non và cha mẹ
Lương Thị Bình, Nguyễn Thị Cẩm Bích, Nguyễn Thị Quyên,..[ và những người khác]