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

Experiment in Hoa Binh CESEAP-station to resaerch the flying distand of bronze arrow-head excavated in the Ancient Co Loa Citadel (Hanoi)

A silk fragment with weaving design of trade workshop name excavated from 18th mandarin's tomb (Project : Ancient Textile in Vietnam)

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

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