Chandrika Sankaranarayanan. (1992). Vayalar Ramavarma: Rithubhethangalkku varnam pakarnna kavi.
Chicago Edition CitationChandrika Sankaranarayanan. Vayalar Ramavarma: Rithubhethangalkku Varnam Pakarnna Kavi. Kottayam, DCB, 1992.
MLA Edition CitationChandrika Sankaranarayanan. Vayalar Ramavarma: Rithubhethangalkku Varnam Pakarnna Kavi. 1992.
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