Daniels, Peter T., og William Bright, eds. 1996. The world's writing systems. ISBN 0-19-507993-0. DeFrancis, John. 1990. The Chinese Language: Fact og Fantasy. Honolulu: University of Hawaii Press. ISBN 0-8248-1068-6 Hannas, William. C. 1997. Asia's Orthografic Dilemma. University of Hawaii Press. ISBN 0-8248-1892-X (paperback); ISBN 0-8248-1842-3 (hardcover) Sampson, Geoffrey. 1985. Writing Systems. Stanford, California: Stanford University Press. ISBN 0-8047-1756-7 (paper), ISBN 0-8047-1254-9 (cloth). Smalley, W.A. (ed.) 1964. Orthografy studies: articles on new writing systems, United Bible Society, London.