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http://gudang-biografi.blogspot.com/2010/01/biografi-thomas-alva-edison-biografi.html
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http://andriewongso.com/awartikel-234-Campus_Corner-Belajar_Memahami_Kegagalan_Dari_Thomas_Alfa_Edison
http://www.bbc.co.uk/indonesia/berita_indonesia/
http://www.apakabardunia.com/2011/10/fakta-dalam-biografi-steve-jobs.html