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Andrew Terrill The Conflicts in Yemen and U.27
|political life and aspects of civilization in Yemen during the reign of Independent States||Glaser, Zwei Inschriften uber den Dairimbruch von Mareb, in Mlttellungen der Vorderasiatlschen Gesellschaft, , 1897, S|
|Ghobari, Mohammed; Sudam, Mohamed 20 January 2011||Paul Wheatley The Places Where Men Pray Together: Cities in Islamic Lands, Seventh Through the Tenth Centuries p|
"Yemen Accuses Iran of Meddling in its Internal Affairs" PDF.