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

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

The Dongson man with war axe on his shultern as handle of a bronze dagger of 2300 years old.

A Muong woman in weaving (Lac Son, Hoa Binh) (Muong Textile Study)

A complet 10.000 years old hoabinhian human skeleton excavated 2004 in Rock-shelter of Du Sang (Hoa Binh, Vietnam)