During excavation 2004 in Du Sang rock-shelter ( Kim Boi, Hoa Binh)
Studing in a bronze casting workshop in Lang Rong (Van Lam, Hung Yen)
The S.E.M image to look for prehistoric bacterien from a Dongsonian ramie cloth fabric.
A silk fragment with weaving design excavated from 18th mandarin's tomb (Project : Ancient Textile in Vietnam)
Transpoting a dongsonian dugout log boat coffin to the Museum - case of cooperation with australien collegues from ANUniversity and ANMuseum 2004