edited by A.J. Marshall, W.D. Williams
Macmillan, 1978
Buku Teks
Shellhammer, H. S., author
The National Press, 1965
Buku Teks
Tanner, James T., author
Burgess Publishing, 1970
Buku Teks
by Cleveland P. Hickman [and others]
McGraw-Hill, 2017
Buku Teks
Elliot, Alfred M., author
Burgess Publishing, 1968
Buku Teks