Alhathloul, Saleh. "The Evolution of city and regional planning in saudi arabia". The evolution of city and regional planning in saudi arabia. ^ a b [37] While using the financial progress and nationwide improvement plans of the 70s, the countrywide infrastructure consisting of electrical power grids, telecommunications networks, h2o pipelines, https://elliot4ubjp.pages10.com/not-known-facts-about-riyadh-province-66948559