11,5 triệu bài dự thi tìm hiểu 60 năm CHXHCN Việt Nam
Nhiều bài dự thi có nội dung, chất lượng sâu sắc, sưu tầm công phu nhiều ảnh đẹp, tư liệu quý, viết tay hoặc đánh máy hàng nghìn trang với hình thức phong phú...
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