Unesco, & Unesco. (2006). The 3rd Regional Training Workshop on the Preservation of and Access to Documentary Heritage in Asia and the Pacific: Risk-preparedness and Preservation Treatment of Documentary Heritage, Cheongju and Seoul, R. of Korea, 4-7 September 2006 : memory of the world. Cheongju: Cheongju Early Printing Museum.

Unesco, and Unesco. The 3rd Regional Training Workshop On the Preservation of and Access to Documentary Heritage in Asia and the Pacific: Risk-preparedness and Preservation Treatment of Documentary Heritage, Cheongju and Seoul, R. of Korea, 4-7 September 2006 : Memory of the World. Cheongju: Cheongju Early Printing Museum, 2006.

Unesco, and Unesco. The 3rd Regional Training Workshop On the Preservation of and Access to Documentary Heritage in Asia and the Pacific: Risk-preparedness and Preservation Treatment of Documentary Heritage, Cheongju and Seoul, R. of Korea, 4-7 September 2006 : Memory of the World. Cheongju: Cheongju Early Printing Museum, 2006.