Shaffer, Rick
Introduction to astronomy
Gramercy Books, 1994
Buku Referensi
Hoyle, Fred
Frontiers of astronomy
Harper & Brothers, 1955
Buku Teks SO
Jefferys, William H.
Discovering astronomy
John Wiley & Sons, 1981
Buku Teks SO
Morrison, David
Frontiers of astronomy
Saunders College, 1990
Buku Teks SO
Chapman, Robert D.
Discovering astronomy
W.H. Freeman, 1978
Buku Teks SO