Bartle, Robert Gardner, 1927-, author
Scott, Foresman, 1968
Buku Teks
Ayres, Frank, 1901-1994, author
[publisher not identified], [date of publication not identified]
Buku Teks
Stewart, James, 1941-, author
Brooks/Cole, 1991
Buku Teks
Larson, Ron, 1941-, author
Brooks/Cole, 2010
Buku Teks
Briggs, Bill, author
Pearson education, 2015
Buku Teks