Summary
Nguồn: Sách giáo khoa Giáo dục Quốc phòng - An ninh 12 (Nhà xuất bản Giáo dục Việt Nam)
Licensing
Public domain
Public domain
false
false
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This work is
ineligible for
copyright
and therefore in the
public domain
because it consists entirely of information that is
common property and contains no original authorship
.
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coat of arms
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copyright
status.
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