Culbertson, John M., author
McGraw-Hill, 1968
Buku Teks
Branson, William H., author
Harper & Row, 1979
Buku Teks
Gapinski, James H., author
McGraw-Hill , 1982
Buku Teks
McCandless, George T., author
Prentice-Hall, 1991
Buku Teks
Barnett, Nancy Smith, author
Prentice-Hall, 1972
Buku Teks