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Songs about Zishi:
Echigo-Zishi by Voyager Series from the Album Japanese Voices
Echigo-Zishi by World Music from the Album Little Singers Of Tokyo
Books about Zishi:
The Quintessential Purple Stone: Duan Inkstones Through the Ages - Zishi Ningying: Lidai Duanyan Yishu by Chinese University of Hong Kong (1995)
Japanese Scroll Paintings VI. Jigoku Zoshi, Gaki Zishi, Yamai Zoshi by Ienaga Saburo (Jan 1, 1960)
Wiki information Zishi:
Zhang Zishi is the son of Kang Sheng.