http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Giáo trình cung cấp những điều luật mà cá nhân, cơ quan, tổ chức có quyền lợi, nghĩa vụ, trách nhiệm khi tham gia nộp thuế