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

Studing in a bronze casting workshop in Lang Rong (Van Lam, Hung Yen)

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

Transpoting a dongsonian dugout log boat coffin to the Museum - case of cooperation with australien collegues from ANUniversity and ANMuseum 2004

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