| | | G.M.Cheiricato, C.Rizzi and H.A. Zakaria | IX European Symposium on the quality of eggs and egg product and the XV European Symposium on the quality of meat | Kusadasi, Turkey | September 9-12, 2001 | Lecturer | |
| | | Maisaa'a W. Shammout and Hana Zakaria | 2016 International conference on mathematical computational and statistical sciences and engineering(MCSSE2016) | Shenzen, China | October, 30-31, 2016 | Lecturer | |
| | | | 2014 International Conference on Environment Engineering and Computer Application | Hong Kong | December, 25-26, 2014 | Participant | |
| | | Maisa'a w. shammout and Hana zakaria | 2013 International Conference on Biomedical Engineering and Environmental Engineering (ICBEEE 2013) | Singapore | December 1-2 , 2013 | Participant | Published in the international journal "Witt Transactions on the Bulit environment )ISSN: 1743-3509, volume 145, Witt Press, indexing by Ei compendex |
| | | Hana A.H. zakaria, Mohammad j. Tabba and Khalil A. Shawabkeh | The 6th Jordanian Scientific Agriculture Conference | Amman- Jordan | 9th-12 of April, 2007 | Lecturer | |
| | | | التحديات التي تواجه صناعة الدواجن وإنتاج أعلافها في الوطن العربي | عمان/الأردن فندق لاند مارك | 8-9/12/2014 | Others | لجنه تحضيريه |
| | | | | Istanbul-Turkey | 8-13 June 2004 | Lecturer | |
| | | | | University of Jordan | 8-10 Jan, 2008. | Participant | |
| | | | | Amman-Intercontinental Hotel. Jordan | 4 November, 2008. | Participant | |
| | | | | the University of Padova | 2nd of March 2001 | Participant | |
| | | | | United Nations University.International Leadership Institute | 28-29 October, 2008. | Participant | |
| | | | 3rd Mediterranean Polutry Summit and 6th International Poultry Conference | Alexandria-Egypt | 26-29 March,2012 | Lecturer | |
| | | | | Padova Fiera, Padova, Italy | 26 Nov, 1999. | Participant | |
| | | | | Sponsered by the American Soybean meal Association at Sheraton Hotel Amman-Jordan. | 25-27/11/2005. | Participant | |
| | | | XIV European Poultry Conference | Stavanger/Norway | 23-27 june, 2014 | Lecturer | |
| | | Hana A.H. Zakaria and M.A. Jalal | The 17th European Symposium on poultry nutrition | Edinburgh-Ssotland | 23-27 August, 2009. | Lecturer | |
| | | American Soybean Meal Association | | four Seasons Hotel, Amman-Jordan | 22-23 April, 2012 | Participant | |
| | | | | UJ, EC Delegation to Jordan and EMECW project,The University of Jordan. | 20th of April, 2008. | Participant | |
| | | Chiericato G.M., Rizzi C., Zakaria H. | XV European Symposium on the quality of poultry meat. | pp.157-162. Kusadasi/Turkey | 2001 | Participant | |
| | | Chiericato G.M., Rizzi C., Zakaria H. | XV European Symposium on the quality of poultry meat | pp.193-198. Kusadasi/Turkey. | 2001 | Participant | |
| | | Chiericato G.M., Rizzi C., Ravarotto L. Zakaria H. | 7th world Rabbit Congress | pp. 11-116. Valencia-Spain | 2000 | Participant | |
| | | Chiericato G.M., Rizzi C., Zakaria H. | 12th European symposium on waterfowl. | pp. 69-72. Adana/Turkey. | 1999 | Participant | |
| | | Chiericato G.M., Rizzi C., Zakaria H. | 12th European Symposium on waterfowl. | pp. 63-68. Adana/Turkey. | 1999 | Participant | |
| | | | | Bologna-Italy. | 19-23 September 1999 | Participant | |
| | | | | University of Cukurova, Adana-Turkey | 18-20 October, 1999 | Participant | |
| | | | | Sponsered by the American Soybean meal Association at Sheraton Hotel Amman-Jordan. | 13-15 Jan, (2007) | Participant | |