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Judul asli :"Getting to the first twenty century : voluntary action and the global agenda"
Bibliografi : hlm. 704-736 No Inv.: 138867,138868/P/Perp/14/2c
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Termasuk bibliografi
Gliese 581 is a red dwarf star some 20.3 light years from Earth. Red dwarfs are among the most numerous stars in the galaxy, and they sport diverse planetary systems. At magnitude 10, Gliese 581 is visible to amateur observers but does not stand out. So what makes this star so important? It is that professional observers have confirmed that it has at least four planets orbiting it, and in 2009,…
No Inv.: 115846/p/perp/2009/1c