1. CAMBRIDGE HISTORY IR 1: 571 (1968).
2. CLIMATIC ATLAS IRAN 1955
3. Map of the natural vegetation of Iran 1970
4. REGIONAL MAPS LAND R 1969
5. BURREL, RJW, ESOPHAGEAL CANCER AMONG BANTU IN TRANSKEI, JOURNAL OF THE NATIONAL CANCER INSTITUTE 28: 495 (1962).