—— Der malayische Archipel. 1878.
—— Geografische en ethnografische beschrijving van het district Singkel. Tijds. III.
—— Reistochten naar de Geelvinkbaai op Nieuw-Guinea. 1875.
Ross, B. R., Notes on the Tinneh or Chepewyan Indians of British and Russian America. Smithson. Rep. 1866.
Roth, W. E., Ethnological studies among the North-West-Central Queensland Aborigines. 1897.
Rousselet, L., Le Kafiristan et les Kafirs. R. E. III.
Rowney, H. B., The wild tribes of India. 1882.
Russell, F., Explorations in the Far North. 1898.
Sagard, Fr. Gabriel, Voyage au pays des Hurons. 1632.
Saleeby, N. J., Studies in Moro history, law, and religion. Department of the Interior. Ethnological Survey Publications. Vol. IV Part I (1905).