Namboothripadu, Kanippayoor Sankaran Namboothirimarum Marumakkathayavum (Malayalam) / Kanippayoor Sankaran Namboothripadu. - Kunnamkulam : Panchangam Pusthakasala ; 1961. - 266 p. ; includes index and biblioraphy ISBN: Dewey Class. No.: R96 / N150