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Contribution to study on the worker class in Vinh-Ben Thuy in the first three decades of the 20th century

Foreign direct investment in Vietnam-Some problems to besolved today

The Quang region in the historical process of the national script (Quoc ngu)

The fairs in the provinces of Tonkin before 1945

The founding of the people's army of Vietnam-An indispensable demand in the revolution for national liberation of our nation