Signed center left Liu Kuo-sung and dated 2005 both in Chinese
With one seal of the artist

ILLUSTRATED:
21st Century, Latest Works of Liu Kuo-sung, Chung HuaUniversity Arts Center, Hsin-chu, 2006, color illustrated, p. 120
The Universe in the Mind – A Retrospective of Liu Kuo-sung,Cultural Affairs Bureau of Taoyuan County Government,Taoyuan, 2007, color illustrated, p. 141