https://highpeakspureearth.com/tibetan-environmentalists-in-china-the-king-of-dzi-by-liu-jianqiang-translated-by-ian-rowen-cyrus-k-and-emily-t-yeh/
"Tibetan Environmentalists in China: The King of Dzi" By Liu Jianqiang, Translated by Ian Rowen; Cyrus K. and Emily T. Yeh