Gadaba / Ollari

Bhaskararao, P. 1980. Ko.nekor Gadaba: a Dravidian Language. Poona: Deccan College Postgraduate and Research Institute

Bhaskararao, Peri. 1998. “Gadaba.” In: Sanford B. Steever (ed.): The Dravidian Langauges. London/New York: Routledge. 328-55

Bhattacharya, S. 1957. Ollari: a Dravidian speech. Delhi: Government of India (Anthropological Survey Memoir, 3).

Burrow, T. & S. Bhattacharya. 1962. “Gadaba supplement.” Indo-Iranian Journal 6/1:45-51

Thusu, K.N. & Jha, M. 1969. Ollar Gadaba of Koraput. Calcutta: Anthropological Survey of India, Government of India