സുമംഗല & Sumangala. (1979). രഹസ്യം (1st.). D C Books.
Chicago Edition Citationസുമംഗല and Sumangala. രഹസ്യം. 1st. Kottayam: D C Books, 1979.
MLA Edition Citationസുമംഗല and Sumangala. രഹസ്യം. 1st. D C Books, 1979.
Warning: These citations may not always be 100% accurate.