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Hasil Pencarian

 
Ditemukan 2 dokumen yang sesuai dengan query
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S. Prajudi Atmosudirdjo, author
Djakarta: Endang, [date of publication not identified]
572.7 PRA i
Buku Teks  Universitas Indonesia Library
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Adam, Mike, author
The life-long inventor, Lee de Forest invented the three-element vacuum tube used between 1906 and 1916 as a detector, amplifier, and oscillator of radio waves. Beginning in 1918 he began to develop a light valve, a device for writing and reading sound using light patterns. While he received many patents...
New York : Springer, 2012
e20425849
eBooks  Universitas Indonesia Library