സുമംഗല & Sumangala. (1967). കടമകള് (1st.). Sahitya Pravarthaka Co-operative Society Ltd.
Chicago Edition Citationസുമംഗല and Sumangala. കടമകള്. 1st. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1967.
MLA Edition Citationസുമംഗല and Sumangala. കടമകള്. 1st. Sahitya Pravarthaka Co-operative Society Ltd, 1967.
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