10.500 years old chared fruit stone fragments of Canarium fruit as food remains excavated in the Hoabinhian cave of Con Mong (Thanh Hoa, Vietnam)

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

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

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

The detail of 4th picture : A Dongsonian ramie cloth with colored band by indigo deyed hemp fibres