evidence: List of countries without rivers [...] The Arabian Peninsula is the largest subregion in the world without any permanent natural river. Countries in this subregion have wadis instead. [...] :|author= has generic name (help) ("The Kingdom has no rivers, lakes or any permanent body of standing water..."). - ^ Lal, Brij V.; Fortune, Kate (2000), The Pacific Islands: An Encyclopedia, vol. 1, University of Hawaii Press, p. 582, ISBN 978-0-8248-2265-1.