http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hướng dẫn kỹ thuật soạn thảo, ký kết thực hiện hợp đồng dân sự và kinh doanh - Thương mại
Theo quy định của Bộ Luật dân sự và Luật thương mại 2005