Charles Babbage: Perbedaan revisi

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Bot: perubahan kosmetika
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* [http://www.sciencemuseum.org.uk/on-line/babbage/index.asp Science Museum's exhibit on the Difference engine]
* [http://socserv2.socsci.mcmaster.ca/~econ/ugcm/3ll3/babbage/index.html ''Economy of Machinery and Manufactures''] at [http://socserv2.socsci.mcmaster.ca/~econ/ugcm/3ll3/ Archive for the History of Economic Thought]
* {{gutenberg author|id=Charles_Babbage|name=Charles Babbage}}
* [http://www.victorianweb.org/science/science_texts/bridgewater/b1.htm The Ninth Bridgewater Treatise]
* [[Francis Baily]], "On Mr. Babbage's new machine for calculating and printing mathematical and astronomical tables" [http://adsabs.harvard.edu//full/seri/AN.../0002//0000227.000.html ''Astronomische Nachrichten'', '''2''' (1824) 407/408]