Chajing (Hanzi sederhana: 茶经; Hanzi tradisional: 茶經; Pinyin: chájīng) adalah sebuah monografi tentang teh pertama yang diketahui di dunia, karya penulis China Lu Yu antara 760 Masehi dan 762 Masehi, pada masa Dinasti Tang.^[1] Karya asli Lu Yu hilang; edisi terawal yang tersedia berasal dari zaman Dinasti Ming.^[2]

• The Classic of Tea (ISBN 0-316-53450-1); Lu, Yu; Intro & Translation By Francis Ross Carpenter, Illustrated by Hitz, Demi;Boston, MA: Little, Brown & Co. 1974
• The Classic of Tea: Origins & Rituals (ISBN 0-88001-416-4); Lu, Yu; Translated by Carpenter, Francis Ross. Preface by Carpenter;New York, New York, U.S.A.: Ecco Press. 1995
• The Classic of Tea in All about tea (ISBN 1-57898-652-4); Lu, Yu; Translation of the University of London library copy of Cha Ching. Acknowledgments for providing the translation: Sir Edward Denison Ross and Mr Z. L. Yih (translator). Published on pages 13 to 22 of All about tea by William H. Ukers vol. 1. Reprinted by Martino Publishing, 2007 (original publication: New York: Tea and Coffee Trade Journal Co, 1935).

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