In completing the face of a Dongsonian woman, whom skeleton was excavated 2004 in Dong Xa (Hung Yen, Vietnam)

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)

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