for HyeWon (I'm not sure how useful any of these might be...)

The Chinese Art of Tea Drinking

The Ubiquitous Cup of Tea

Chinese Tea

Chinese Art of tea Drinking

Tasan and Kangjin

"...Japanese tea developement is much different from its Chinese origin

Korean Tea Customs

tea history

Tea Cultures Vary From Nation to Nation and Tea in its Own Place: Mt. Chiri in May, The Better the Tea, the Cooler the Water, A Tragic Poet With Tea And Tea-Room, and others by An Sonjae

excerpts from Lu Yu's 'Tea Classic', and fuller text of Ch'a Ching