Tham khảo Ibb

  1. 1 2 3 4 5 Carter, Terry; Dunston, Lara (2007). Oman, UAE & Arabian Peninsula. Lonely Planet. tr. 484. ISBN 978-1-74104-546-8.
  2. ↑ Wald, Peter (1996). Yemen. Pallas Athene. tr. 179. ISBN 978-1-873429-11-2.
  3. ↑ Blumi, Isa (30 tháng 7 năm 2010). Chaos in Yemen: Societal Collapse and the New Authoritarianism. Taylor & Francis. tr. 87. ISBN 978-0-203-84742-8.
  4. ↑ Burrowes, Robert D. (2010). Historical Dictionary of Yemen. Rowman & Littlefield. tr. 169. ISBN 978-0-8108-5528-1.
  5. ↑ El-Khalidi, Hatem (tháng 9 năm 2011). Sojourn in a Dreadful Land (Yemen Chronicles). Dorrance Publishing. tr. 13. ISBN 978-1-4349-1197-1.
  6. ↑ Ibb, Hermann Burchardt (Nhấn vào ảnh để phóng to); Whitewashed houses.
  7. ↑ “Ibb”. Encyclopædia Britannica. Truy cập ngày 22 tháng 11 năm 2013.
  8. ↑ Ingrams, William Harold (1964). The Yemen: Imams, rulers & revolutions. Praeger. tr. 31.

Tài liệu tham khảo

WikiPedia: Ibb http://www.britannica.com/EBchecked/topic/280558/I... http://www.smb-digital.de/eMuseumPlus?service=Exte... http://www.smb-digital.de/eMuseumPlus?service=Exte... //tools.wmflabs.org/geohack/geohack.php?language=v... https://books.google.com/books?id=C2a6eVpf_wIC&pg=... https://books.google.com/books?id=IxEuAQAAIAAJ https://books.google.com/books?id=YGjMQp2OQAgC&pg=... https://books.google.com/books?id=cjrRAAAAMAAJ https://books.google.com/books?id=nDsjyU2Re6AC&pg=... https://books.google.com/books?id=tjXRfqBv_0UC&pg=...