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Alexander_Graham_BellLiên quan
Alexa Alexandros Đại đế Alexandre Yersin Alexandre de Rhodes Alexandria Alexander Zverev Alexander Alekhine Alexandria Ocasio-Cortez Alexandre Lacazette Alexander RybakTài liệu tham khảo
WikiPedia: Alexander_Graham_Bell http://www.bellhomestead.ca/ http://www.biographi.ca/EN/ShowBio.asp?BioId=42027 http://www.pc.gc.ca/lhn-nhs/ns/grahambell/index_e.... http://bell.uccb.ns.ca/ http://www.science.ca/scientists/scientistprofile.... http://www.alexanderbell.com/ http://www.amazon.com/dp/B0009K7RUW http://www.answers.com/topic/alexander-graham-bell http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&G... http://www.google.com/patents?vid=161739