Olappamanna. (1980). Dhukhamavuka Sukham. Sahitya Pravarthaka Co-operative Society Ltd.
シカゴスタイル引用形Olappamanna. Dhukhamavuka Sukham. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1980.
MLA引用形式Olappamanna. Dhukhamavuka Sukham. Sahitya Pravarthaka Co-operative Society Ltd, 1980.
警告: この引用は必ずしも正確ではありません.