Political Risk Yearbook, 1998. Political Risk Services. 1998: 48. ISBN 978-1-85271-371-3.: "The two branches of the Al-Sabah family, the Jabers and the Salems, have traditionally alternated their rule, one providing the emir and the other the crown prince (also serving as prime minister)."
Shoup, John A; Maisel, Sebastian. Saudi Arabia and the Gulf Arab States Today: A-J. Greenwood Publishing Group. 2009: 323. ISBN 978-0-313-34444-2.. "The Al Nahyan ... are a branch of the Al Bu Falah tribe of the Bani Yas confederation, and although they have been a small section of the tribe, the Al Nahyan have traditionally provided the paramount shaykh for the confederation."
Cordesman, Anthony H. Saudi Arabia: national security in a troubled region. ABC-CLIO. 2009: 9 [2015-01-18]. ISBN 978-0-313-38076-1. （原始内容存档于2015-01-18）.: "In October 2006, King Abdullah issued a new succession law that amended the 1992 Basic Law and formalized the process by creating the Allegiance Commission. The new law both defines how a king will choose among possible candidates and provides a formal way for developing a consensus to choose the king's successor. The Allegiance Commission will select a king and crown prince upon the death or incapacitation of either. This commission expands the role of the ruling family in the selection process. ... It is composed of some 35 sons and grandsons of the late founder of the Kingdom, Abd al-Aziz al-Saud, who will vote in secret ballots on who could and could not be eligible to be future kings and crown princes."
Cordesman, Anthony H. Saudi Arabia: national security in a troubled region. ABC-CLIO. 2009: 9 [2015-01-18]. ISBN 978-0-313-38076-1. （原始内容存档于2015-01-18）.: "In October 2006, King Abdullah issued a new succession law that amended the 1992 Basic Law and formalized the process by creating the Allegiance Commission. The new law both defines how a king will choose among possible candidates and provides a formal way for developing a consensus to choose the king's successor. The Allegiance Commission will select a king and crown prince upon the death or incapacitation of either. This commission expands the role of the ruling family in the selection process. ... It is composed of some 35 sons and grandsons of the late founder of the Kingdom, Abd al-Aziz al-Saud, who will vote in secret ballots on who could and could not be eligible to be future kings and crown princes."
