| | Jalal A. Zahra, Mustafa El-Abadelah, Bassam Abu Thaher | The 13th European Symposium on Organic Chemistry | Cavtat-Dubrovnik ,Croatia | September 10–15, 2003 | Participant | |
| | | The First Conference on Scientific Research in Jordan | Amman-Jordan | October 25-26, 2003 | Participant | |
| | | Innovationskolleg Chemisches Signal und Biologische antwort 7. Workshop in Leipzig | | November 10-11, 2000 | Participant | |
| | Jalal A. Zahra, Lothar Hennig, Peter Welzel | Innovationskolleg Chemisches Signal und Biologische antwort 5. Workshop | Leipzig-Germany | March 29-30, 1999 | Participant | |
| | Jalal A. Zahra, Lothar Hennig, Peter Welzel | 2nd German-East-European Carbohydrate Workshop | Güstrow/Rostock, Germany | March 24-28, 1999 | Participant | |
| | | Chemiedozententagung 2001 | Leipzig, Germany | March 18-21, 2001 | Participant | |
| | Jalal A. Zahra, Bassam A. Abu Thaher, Mustafa M. El-Abadelah and Roland Boese | The 14th European Symposium on Organic Chemistry | Helsinki, Finland | July 4–8, 2005 | Participant | |
| | | | Leipzig, Germany | January 29, 1999 | Participant | |
| | Jalal A. Zahra, Lothar Hennig, Peter Welzel | 3rd German-East-European Carbohydrate Workshop | Güstrow, Germany | February 28 - March 4, 2001 | Participant | |
| | | Innovationskolleg Chemisches Signal und Biologische antwort 6. Workshop in Leipzig | | February ,8-9, 2000 | Participant | |
| | Abu Thaher, Bassam; Zahra, Jalal A.; El-Abadelah, Mustafa M.; Otto, Hans-Hartwig | 2nd International Conference on Chemistry and its applications | State of Qatar | December 6-9, 2003 | Participant | |
| | Uwe Eichelberger, Jalal A. Zahra, Lothar Hennig, Peter Welzel | 37th IUPAC Congress and 27th GDCh General Meeting | Berlin, Germany | August 14-19,1999 | Participant | |
| | Zahra, Jalal A.; Thaher, Bassam A. Abu; El-Abadelah, Mustafa M. | The Third Jordanian International Conference of Chemistry | Irbid-Jordan | April 22-26, 2002 | Participant | |
| | Rami K. Sammarah, Musa H. Abu Zarga, Jalal A. Zahra and Klaus-Peter Zeller | The Third Jordanian International Conference of Chemistry | Irbid-Jordan | April 22-26, 2002 | Participant | |
| | Thaher, Bassam A. Abu; Jalal A. Zahra; El-Abadelah, Mustafa M | The Third Jordanian International Conference of Chemistry | Irbid-Jordan | April 22-26, 2002 | Participant | |