Trucial States, Muscat and Oman: Aswad - Scale 1:100 000 - Published by D Survey, Ministry of Defence, United Kingdom (1971) - Edition 3-GSGS - The National Archives, London, England <https://www.agda.ae/en/catalogue/tna/fco/18/1796/n/1>
Map FCO 18/1791 - 1972 - Oman and the United Arab Emirates (UAE): Dibba - Scale 1:100 000 - Published by D Survey, Ministry of Defence, United Kingdom (1971) - Edition 3-GSGS - The National Archives, London, England <https://www.agda.ae/en/catalogue/tna/fco/18/1787>
FCO 18/1940 1958 Sketch map drawn by Julian Walker for boundary delimitation: Wadi Al Qawr and Wadi Hatta - The National Archives, London, England <https://www.agda.ae/en/catalogue/tna/fco/18/1940>
Application of a hydrological model in a data poor arid region catchment: a case study of Wadi Ham - Mohamed Mustafa Al Mulla PhD Thesis
Academic Year 2005-2006 - Supervisor: Dr Ian P. Holman - December 1, 2005 - Cranfield University at Silsoe - Institute of Water and Environment <https://dspace.lib.cranfield.ac.uk/items/c116d8d5-f80b-4c8b-b754-7507d3abec27>
Tribulus - Volume 24 - 2016 - Journal of the Emirates Natural History Group - The Flora of Wadi Wurayah National Park, Fujairah, United Arab Emirates:
An annotated checklist and selected observations on the flora of an extensive ultrabasic bedrock
environment in the northern Hajar Mountains - Gary R. Feulner - Abu Dhabi, United Arab Emirates, 2016<https://enhg.org/Portals/1/trib/V24/TribulusV24.pdf>