Columbia subject headings:
Arabian Peninsula--In Islam.
Arabs--History--To 622.
Daʻwah (Islam)
Islamic Empire.
Harvard subject headings:
Arabian Peninsula in Islam.
Arabs--History--To 622
Daʻwah (Islam)
Islamic Empire.
Princeton subject headings:
Arabian Peninsula--In Islam.
Arabs--History--To 622.
Daʻwah (Islam)
Islamic Empire.