Yasser Osman

Joined: 20 Oct 2009
Last Login: 1 month ago
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Presentations (4 Public) Podcasts (0 Public)
     
Ecotourism
Ecotourism
Education
Uploaded: 1 month ago
30 slides
Views: 56
Role of Biodiversity to combet Desertifi
Role of Biod..
Education
Uploaded: 1 month ago
30 slides
Views: 19
Desertification in Egypt
Desertificat..
Education
Uploaded: 1 month ago
25 slides
Views: 22
One world...One destiny
One world.....
Education
Uploaded: 1 month ago
36 slides
Views: 1