Al Okasi، S. H.، و Meadow، J. (2001). What Does Islam and the Cultures Present in Saudi Arabia Have to Contribute to Developing A Saudi Environmental Education: How Might this be Achieved (رسالة ماجستير غير منشورة). London South Bank University، لندن. مسترجع من http://search.mandumah.com/Record/610069
Al Okasi، Safyah Hatem، و John Meadow. "What Does Islam and the Cultures Present in Saudi Arabia Have to Contribute to Developing A Saudi Environmental Education: How Might This Be Achieved" رسالة ماجستير. London South Bank University، لندن، 2001. مسترجع من http://search.mandumah.com/Record/610069