http://serengeti.org/download/Tourism.pdf
http://www.theecologist.org/News/news_round_up/563507/tanzanias_serengeti_highway_plan_could_destroy_major_carbon_sink.html
http://blueplanetbiomes.org/african_savanna_plant_page.htm
http://books.google.com/books?id=YRybBlahRGUC&ei=HUy9UKm_CongkgSS44Fo
http://blueplanetbiomes.org/