Morrison, David, author
Saunders College, 1990
Buku Teks
Hoyle, Fred, author
Harper & Brothers, 1955
Buku Teks
Jastrow, Robert, author
John Wiley & Sons, 1977
Buku Teks
Baker, Robert H., author
D. Van Nostrand, 1964
Buku Teks
Chapman, Robert D., author
W.H. Freeman, 1978
Buku Teks