Mathur, P. R. G. (1977). Tribal situation in Kerala. Kerala Historical Society.
Cita Chicago (17th ed.)Mathur, P. R. G. Tribal Situation in Kerala. Trivandrum: Kerala Historical Society, 1977.
Cita MLA (8th ed.)Mathur, P. R. G. Tribal Situation in Kerala. Kerala Historical Society, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.