Hickman, Cleveland P., author
Mosby, 1970
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