Shillinglaw, Gordon
Richard D. Irwin, 1989
Buku Teks SO
Slavin, Albert
Holt Rinehart and Winston, 1972
Buku Teks
Stickney, Clyde P.
Harcourt Brace Jovanovich, 1991
Buku Teks
by Thomas P. Edmonds ... [and others]
McGraw-Hill, 2000
Buku Teks SO
by Thomas P. Edmonds [and others]
McGraw-Hill, 1997
Buku Teks SO