The earliest amulet in fish form made from a big bird nail, which excavated in Du Sang rock-shelter (Kim Boi, Hoa Binh, Vietnam) in ca. 18.000 years ago

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

The completing facial reconstructions of the 2100 years old skulls excavated in the Dong Xa dongsonian burial field (Project : Facial Reconstruction for Prehistorical Human Skulls)

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

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