Retnamma,K. (2003). MalayalaBhashacharitram Ezhuthachan vare. State Institute of Languages.
Čikaški stil citiranjaRetnamma,K. MalayalaBhashacharitram Ezhuthachan Vare. Trivandrum: State Institute of Languages, 2003.
MLA način citiranjaRetnamma,K. MalayalaBhashacharitram Ezhuthachan Vare. State Institute of Languages, 2003.
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