Tanzania – Stone Town of Zanzibar Archived 20 October 2007 at Archive.today "18th and Early 19th centuries.
اطلع عليه بتاريخ 04 ديسمبر 2011.  Tanzania – Stone Town of Zanzibar نسخة محفوظة 20 October 2007 at Archive.is "18th and Early 19th centuries.