QUOC TRIEU HINH LUAT - alias HONG DUC ( 1470 - 1497 ) Civil Code and HOANG VIET LUAT LE alias GIA LONG ( 1802 - 1820 ) Civil Code were the two oldest civil codes of Vietnam feudalism that remained up to now in full undamaged original form. The two above-mentioned works are priceless heritage having multiple reference's value for research circle today. The Edition that you are holding is a modern Vietnamese translation ( that made by Vietnam Institute for History ) from Chinese original of the two works. It is useful material resource for reference for researchers and people who interesting on history, culture and law of Vietnam in the medieval times.