1. Kuraku, Y. 1988.Urushi, Edited by: Brommelle, N. S. and Smith, P. 45California: Getty Conservation Institute.
2. Du, Y. M. 1988.Urushi, Edited by: Brommelle, N. S. and Smith, P. 194California: Getty Conservation Institute.
3. Hu, J. 1980.Conservation and Restoration of Cultural Property: Conservation of Far Eastern Objects, 89–112. Tokyo, Japan: Tokyo ational Res. Inst. of Cultural Property.