Foreman, Patricia L.
Good Earth Publications , 1992
Buku Teks
by Daniel S. Cheever ... [et al.]
Addison-Wesley, 1986
Buku Teks
by Peter Coburn ... [et al.]
Addison-Wesley, 1985
Buku Teks
Sanders, Donald H., author
McGraw-Hill Book, 1985
Buku Teks
Borland International, 1988
Buku Teks