एपीए उद्धरण

Shaji Venkadethu. (2005). Audyogika bhashanigandu. Current books.

शिकागो स्टाइल उद्धरण

Shaji Venkadethu. Audyogika Bhashanigandu. Kottayam: Current books, 2005.

एमएलए उद्धरण

Shaji Venkadethu. Audyogika Bhashanigandu. Current books, 2005.