by Eldra Pearl Solomon [and others]
Saunders College , 1993
Buku Teks
Case, James F.
Macmillan, 1979
Buku Teks
by James D. Ebert ... [and others]
Holt, Rinehart and Winston, 1973
Buku Teks
Campbell, Neil A., 1946-2004
The Benjamin/Cummings, 1993
Buku Teks
McGraw-Hill, 2002
Buku Teks