Goldman, Stephen H.
Houghton Miffiln, 1986
Buku Teks
Spaventa, Lou J.
McGraw-Hill, 2001
Buku Teks
Gillespie, Sheena
Scott, Foresman and Company, 1986
Buku Teks
Day, Susan
McGraw-Hill, 1988
Buku Teks
edited by X.J. Kennedy and Dorothy M. Kennedy
St. Martin's Press, 1985
Buku Teks