Muong megalith tomb in 17th - 18th century (Kim Boi, Hoa Binh)

The S.E.M image to look for prehistoric bacterien from a Dongsonian ramie cloth fabric.

A silk fragment with weaving design excavated from 18th mandarin's tomb (Project : Ancient Textile in Vietnam)

Bach Dang poles discovery

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