<https://secure.gravatar.com/avatar/3149863e5bd6e211f48d88e74e5e6e8f?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://nongtrongngay.net/nobel-kinh-te-2021-luong-toi-thieu-va-quan-he-nhan-qua.chn>