Thusu, K. N. (1977). The Pengo Porajas of Koraput: An ethnographic survey. Anthropological Survey of India, Govt. of India.
Dyfyniad Arddull ChicagoThusu, Kidar Nath. The Pengo Porajas of Koraput: An Ethnographic Survey. Calcutta: Anthropological Survey of India, Govt. of India, 1977.
Dyfyniad MLAThusu, Kidar Nath. The Pengo Porajas of Koraput: An Ethnographic Survey. Anthropological Survey of India, Govt. of India, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.