Tell es-Sultan/Jericho in the context of the Jordan Valley : site management, conservation, and sustainable development. Proceedings of the International Workshop held in Ariha, 7th -11 th February 2005 by the Department of Antiquities and Cultural Heritage, Ministery of Tourism and Antiquities UNESCO Office - Ramallah, Rome "La Sapienza" University - Nigro, Lorenzo; Tāhā, Hāmdān (Università "La Sapienza", 2006)