Boas, Franz. 1940. Race, language and culture. New York: Macmillan.
Bright, William. 1982. Review of Mitchiner 1978. Journal of the American Oriental Society 1021:233–35. [Adapted as How not to decipher the Indus Valley inscriptions, in Bright 1990:118–23.]
Bright, William. 1986. Archaeology, linguistics, and Ancient Dravidian. In South Asian languages: Structure, convergence and diglossia, ed. by Bh. Krishnamurti, 108–12. Delhi: Motilal Banarsidass. [Reprinted in Bright 1990:124–29.]
Bright, William. 1990. Language variation in South Asia. New York: Oxford University Press, 1990.
Fairservis, Walter A., Jr.1992. The Harappan civilization and its writing: A model for the decipherment of the Indus script. Delhi: Oxford & IBH.
Knorozov, Yurij V., et al.1981. Proto-Indica: 1979. Moscow: Nauka.
Mitchiner, John E.1978. Studies in the Indus Valley inscriptions. Delhi: Oxford & IBH.
Parpola, Asko. 1994. Deciphering the Indus script. Cambridge: University Press.
Rao, S. R.1982. The development of the Indus script. Bombay: Asia Publishing.