Hinkle, Dennis E.
Houghton Mifflin, 2003
Buku Teks
Hays, William Lee, 1926-1995
Holt, Rinehart and Winston, 1973
Buku Teks
by Bruce L. Brown [and others]
John Wiley & Sons, 2012
Buku Teks
Brown, Robert F.
Wadsworth, 1980
Buku Teks
Budnick, Frank S.
McGraw-Hill, 1993
Buku Teks