Pandit, Prabodh B. (1975). "The linguistic survey of India - perspectives on language use". In Ohannessian, Sirarpi; Charles A Ferguson; Edgar C. Polome (eds.). Language surveys in developing nations: papers and reports on sociolinguistic surveys(PDF). Arlington, Va.: Center for Applied Linguistics. pp. 71–85. Archived(PDF) from the original on 2016-08-04. Retrieved 2016-07-24.
Pandit, Prabodh B. (1975). "The linguistic survey of India - perspectives on language use". In Ohannessian, Sirarpi; Charles A Ferguson; Edgar C. Polome (eds.). Language surveys in developing nations: papers and reports on sociolinguistic surveys(PDF). Arlington, Va.: Center for Applied Linguistics. pp. 71–85. Archived(PDF) from the original on 2016-08-04. Retrieved 2016-07-24.