'Gazetteer of the Persian Gulf. Vol. II. Geographical and Statistical. J G Lorimer. 1908' [229] (252/2084), British Library: India Office Records and Private Papers, IOR/L/PS/20/C91/4, in Qatar Digital Library <http://www.qdl.qa/en/archive/81055/vdc_100023515712.0x000035> [accessed 24 July 2015]