Chandrika Sankaranarayanan. (1992). Vayalar Ramavarma: Rithubhethangalkku varnam pakarnna kavi.
シカゴスタイル引用形Chandrika Sankaranarayanan. Vayalar Ramavarma: Rithubhethangalkku Varnam Pakarnna Kavi. Kottayam, DCB, 1992.
MLA引用形式Chandrika Sankaranarayanan. Vayalar Ramavarma: Rithubhethangalkku Varnam Pakarnna Kavi. 1992.
警告: この引用は必ずしも正確ではありません.