Skull at Bach Dang poles excavation

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

PEG-treating in conservating a dongsonian dugout log coffin of 2300 years old

Studio via modern X-ray film to controle relationship between facial sorf tissues and facial bone (Project : Facial reconstruction for prehistoric human skulls)

During excavation 2004 in Du Sang rock-shelter ( Kim Boi, Hoa Binh)