Helmkamp, John G., author
John Wiley & Sons, 1989
Buku Teks
Needles, Belverd E., author
Houghton Mifflin, 1990
Buku Teks
Needles, Belverd E., author
Houghton Mifflin, 1984
Buku Teks
Needles, Belverd E., author
Houghton Mifflin, 1990
Buku Teks
Needles, Belverd E., author
Hoghton Mifflin, 1987
Buku Teks