<http://gmaths.edu.vn/nang-cao-kien-thuc-cho-giao-vien-gmaths-ve-giao-duc-stem-steam/#person>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/Person>
<http://gmaths.edu.vn/nang-cao-kien-thuc-cho-giao-vien-gmaths-ve-giao-duc-stem-steam/>