Alekshin, V. A. (1983). Burial customs as an archaeological source. Current Anthropology, 24, 137-138. doi:10.1086/202960
 Bondo, E. W. (1932). Highlander. London: Oxford University Press.
 Grigson, W. (1950). Maria gonds of bustar. Oxford: Oxford University Press.
 Hutton, J. H. (1992). The meaning and methods of erection of monoliths of Naga tribes. Journal of Royal Anthropological Institute, 52, 242-249.
 John, K. J. (1975). Early man in Wynad. Journal of Kerala Studies, II, 125-131.
 John, K. J. (1978). The megalithic culture of Kerala. In V. N. Misra, & P. Bellwood (Eds), Recent advances in Indo-Pacific pre-history (pp. 485-489). New Delhi: Oxford and IBH Publishing Co.
 Kapp, D. B. (1985). The Kurumbas’ relationship to the “megalithic” cult of Nilgiri hills (South India). Anthropos, 80, 493-534.
 Krishna Iyer, L. A. (1939). The disposal of the dead among the primitive tribes of Travancore. Man in India, XIX, 61-62.
 Krishna Iyer, L. A. (1948). The pre-historic archaeology of Kerala. Trivandrum: L.K. Balaratnam.
 Krishna Iyer, L. A. (1967). Kerala megaliths and their builders. Madras: University of Madras.
 Mawlong, C. (1990). Classification of Khasi megaliths: A critic. Proceedings of Northeast India History Association, Imphal, 9-14.
 Murphy, R. F. (1989) Cultural and social anthropology: An overture (3rd ed.). Eagle Wood Cliffs, NJ: Prentice Hall.
 Poyil, M. (2009). Farewell ritual and transmigrating souls: Secondary funeral of the Kurumbas of Attappadi. The Anthropologist, 11, 31-38.
 Tylor, E. B. (1871). Primitive culture, I. London: John Murray.