Bierman, Harold, author
Macmillan, 1959
Buku Teks
DeCoster, Don T., author
Melville Publishing Company, 1974
Buku Teks
Brewer, Peter C., author
McGraw-Hill Education, 2016
Buku Teks
Dominiak, Geraldine F., author
PWS-Kent, 1991
Buku Teks
Moore, Carl L., author
South-Western Publishing, 1976
Buku Teks