Twitchell, K.S.
Saudi Arabia, with an account of the development of its natural resources
Princeton University Press, 1953
 Buku Teks SO
Twitchell, K.S.
Saudi Arabia : with an account of the development of its natural resources
Princeton University, 1958
 Buku Teks SO
The Kingdom of Saudi Arabia: modernization and development
Al-Arabi Printing Press, 2002
 Buku Teks SO
Al-Farsy, Fouad
Saudi Arabia : a case study for development
KPI, 1986
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Kingdom of Saudi Arabia: History-Civilization-Development
Kingdom of Saudi Arabia
Ministry of Information Foreign Information, 2002
 Buku Teks SO