Dornan, S. S. (1925). Pygmies & Bushmen of the Kalahari: An account of the hunting tribes inhabiting the great arid plateau of the Kalahari desert, their precarious manner of living, their habits, customs & beliefs, with some reference to Bushman art, both early & of recent date, & to the neighbouring African tribes. Seeley, Service.

Dornan, S. S. Pygmies & Bushmen of the Kalahari: An Account of the Hunting Tribes Inhabiting the Great Arid Plateau of the Kalahari Desert, Their Precarious Manner of Living, Their Habits, Customs & Beliefs, with Some Reference to Bushman Art, Both Early & of Recent Date, & to the Neighbouring African Tribes. Seeley, Service, 1925.