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

The first pebble tool with a narrow and curved polished edge. The tool is collected in the rock-shelter Du Sang (Hoa Binh, Vietnam)

12.500 years old chared fruit fragments as food remains excavated in the Hoabinhian cave of Con Mong (Thanh Hoa, Vietnam)

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

Muong' weaving decoration with phoenix and dragon designs (Muong Textile Study)