Rankine, Graeme W., author
Prentice-Hall, 1990
Buku Teks
Rankine, Graeme W., author
Prentice-Hall, 1993
Buku Teks
Thomas, William E., author
South-Western Publishing, 1988
Buku Teks
edited by Alfred Rappaport
Prentice-Hall, 1982
Buku Teks
Ingram, Robert W., author
Brington, 1980
Buku Teks