Hartman, William K.
Astronomy : the cosmic journey
Wadswoth, 1978
Buku Teks SO
Adams, Fred
Cosmic update : Dark puzzles. Arrow of time. Future history
[Springer, ], 2012
eBooks
Pasachoff, Jay M.
The cosmos : astronomy in the new millennium
Thomson, 2001
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Shaffer, Rick
Introduction to astronomy
Gramercy Books, 1994
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Chaisson, Eric
Astronomy today : third edition
Prentice-Hall, 1999
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