ISBN-13: 9786205501504 / Angielski
Professor: 31/10/1999 till update in faculty of Science, Assiut UniversiScientific mission: 3 months DFG - Germany, (7/2005-9/2005).Visitor Professor: Quatar University, 31/10/1996-1/1997. Saudi Arabia: (Teaching), 9/1989 -8/1994. Professor: Faculty of applied Science, Umm Al Qura University KSA2009-2014.
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