<https://tienghoagiaotiep.com/hoc-tieng-trung-giao-tiep-theo-giao-trinh-han-ngu-1-bai-1/#richSnippet>
<http://schema.org/author>
<https://tienghoagiaotiep.com/author/c7c3d67e54e670dae11b795174eb696c/>
<https://tienghoagiaotiep.com/hoc-tieng-trung-giao-tiep-theo-giao-trinh-han-ngu-1-bai-1/>