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

Skull at Bach Dang poles excavation

Hmong girls in ceremonial costums in Sa Pa (Lao Cai, Viet Nam)(Hmong Textile Study)

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

The most famous hoabinhian cave of Xom Trai (Lac Son, Hoa Binh, Vietnam)