Vegetable remains excavated in 2100 years old Dong Xa burial field of the Dong Son culture (Kim Dong, Hung Yen, Vietnam)
Hemp (Canabis) study (Project : Ancient Textile in Vietnam)
H'mong cloth embroidery design (H'mong textile study)
During excavation 2004 in Du Sang rock-shelter ( Kim Boi, Hoa Binh)
The dongsonian bronze drum excavated in burial field Dong Xa (Kim Dong, Hung Yen, Vietnam) in detail.