Bharathan, P. (1975). Intyayute Bhuvijnanam. State Institute of Languages.
Dyfyniad Arddull ChicagoBharathan, P.K. Intyayute Bhuvijnanam. Trivandrum: State Institute of Languages, 1975.
Dyfyniad MLABharathan, P.K. Intyayute Bhuvijnanam. State Institute of Languages, 1975.
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