During excavation 2004 in Du Sang rock-shelter ( Kim Boi, Hoa Binh)

Ethnobotanic Study 2005 in a Muong hamlet (Kim Boi, Hoa Binh)

A ramie cloth fragment excavated from a Dongsonian dugout log coffin in Chau Can burial field (Ha Tay, Vietnam)

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

Hmong girls in ceremonial costums in Sa Pa (Lao Cai, Viet Nam)(Hmong Textile Study)