(1992). M Sukumaran: Kadha kalam vyakthi. Imprint Books.
Chicago Style aipamenaM Sukumaran: Kadha Kalam Vyakthi. Kollam: Imprint Books, 1992.
MLA aipamenaM Sukumaran: Kadha Kalam Vyakthi. Imprint Books, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.