M. K. Devassy (1965). 1961 Census Handbook- Cannanore District(PDF). Directorate of Census Operations, Kerala and The Union Territory of Laccadive, Minicoy, and Amindivi Islands.
M. K. Devassy (1967). Census of India - 1961 (Kerala)(PDF). Directorate of Census Operations, Kerala and The Union Territory of Laccadive, Minicoy, and Amindivi Islands.