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

The first pebble tool with a narrow and curved polished edge. The tool is collected in the rock-shelter Du Sang (Hoa Binh, Vietnam)

Muong' weaving decoration with phoenix and dragon designs (Muong Textile Study)

Skull at Bach Dang poles excavation

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