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↑ Wheeler, Stephen (2004). "Planning Sustainable and Livable Cities", Routledge; Edisi ke-3.
1 2 Davreu, Robert (1978). "Cities of Mystery: The Lost Empire of the Indus Valley". The World’s Last Mysteries. (second edition). Sydney: Readers’ Digest. pp. 121-129. ISBN 0-909486-61-1.
↑ Kipfer, Barbara Ann (2000). Encyclopedic Dictionary of Archaeology. (Illustrated edition). New York: Springer. p. 229. ISBN 306461587.
