See Allo

Baker, Robert H., author

D. Van Nostrand, 1964

Buku Teks

Morrison, David, author

Frontiers of astronomy

Saunders College, 1990

Buku Teks

Chapman, Robert D., author

Discovering astronomy

W.H. Freeman, 1978

Buku Teks

Chaisson, Eric, author

Astronomy today

Prentice-Hall, 1999

Multimedia

Jefferys, William H., author

Discovering astronomy

John Wiley & Sons, 1981

Buku Teks

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