"Khalifa bin Harub of Zanzibar" . "1911" . . "1879" . . . . "Khalifa bin Harub" . "Sultan Khalifa Bin Harub" . . "Sir Seyyid Khalifa bin Haroub Al-busaidy" . . "Sir Khalifa bin Harub" . "Khalifa
bin Harub" . . . "1960" . "Khalifa II" . . "Khalifa bin Harub of Zanzibar" . . . . . "Khalifa bin Harubn" . . . "Khalifa bin Harub Al Said" . . . "Seyyid Khalifa bin Harub" . "Khalifa bin Harub Al-Busaid" . "Khalifa bin Harub Al-Busaid, 9th Sultan of Zanzibar" . "The Sultan of Zanzibar" . "Sir Khalifa bin Harub Al-Said" . . . . "1911" . "Sultan of Zanzibar" .