http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
ảnh hưởng chất đạm trên sức tăng trưởng của vịt tàu
Viện Đại Học Cần Thơ - Trường Cao Đẳng Nông Nghiệp
domestic animals,duck - feeding and feeds,poultry