<https://vass.gov.vn/tin-tuc-dao-tao/le-khai-giang-khoa-dao-tao-tieng-viet-nam-2015-cho-hoc-vien-han-quoc-474>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://vass.gov.vn/tin-tuc-dao-tao/le-khai-giang-khoa-dao-tao-tieng-viet-nam-2015-cho-hoc-vien-han-quoc-474>