Sankaran Unni, K. (1974). Paristhiti vijnanathinte moola tatvangal. State Institute of Languages.
Chicago Style aipamenaSankaran Unni, K. Paristhiti Vijnanathinte Moola Tatvangal. Trivandrum: State Institute of Languages, 1974.
MLA aipamenaSankaran Unni, K. Paristhiti Vijnanathinte Moola Tatvangal. State Institute of Languages, 1974.
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