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10.04 13.04.2011 |
Scientific forum - 2011 5- | |
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17.01 20.01.2010 |
Saudi Oil and Gas - 2010 " " | |
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18.10 21.10.2009 |
Saudi Petrochem - 2009 | |
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12.02 15.02.2007 |
Saudi Petrochem - 2007 , | |
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12.03 15.03.2006 |
Oil, gas & power Saudi Arabia - 2006 1- | |
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06.03 10.03.2005 |
Saudi PetroChem - 2005 2- , |