Reynolds, Lloyd G., author
Prentice-Hall, 1978
Buku Teks
Mills, Daniel Quinn, author
McGraw-Hill Irwin, 1982
Buku Teks
Mills, Daniel Quinn, author
McGraw-Hill, 1994
Buku Teks
Dilts, David A., author
McGraw-Hill, Irwin, 2007
Buku Teks
Fulmer, William E., author
Richard D. Irwin, 1980
Buku Teks