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Browsing Environmental Science Center by Author "Mobarak%2C Z %5B%D8%B2%D9%8A%D9%86 %D8%A7%D9%84%D8%B9%D8%A7%D8%A8%D8%AF%D9%8A%D9%86 %D9%85%D8%A8%D8%A7%D8%B1%D9%83%5D"