Studing on the dongsonian bronze drum excavated in burial field Dong Xa (Kim Dong, Hung Yen, Vietnam)

Ethnobotanic Study 2005 in a Muong hamlet (Kim Boi, Hoa Binh)

A ramie cloth fragment excavated from a Dongsonian dugout log coffin in Chau Can burial field (Ha Tay, Vietnam)

The earliest evidence for the beginning of fine art in Vietnam : 18.000 years ago in the hoabinhian sediment of Xom Trai cave (Lac Son, Hoa Binh)

Bach Dang poles discovery