_:n78671c070ea6455880cceac0a35e37b9xb2
<http://schema.org/url>
<https://1.bp.blogspot.com/-YA9C9gXdb3Y/YQdMA_YtkSI/AAAAAAAAFmM/v3qlRiPt-3AbTKGIZK4K32mG2Gz8gMnFACPcBGAsYHg/w1200-h630-p-k-no-nu/maxresdefault.jpg>
<https://www.eduzim.com/2021/09/khoa-hoc-huong-dan-ban-hang-online-bang.html>