Melvin, Michael, author
HarperCollins, 1995
Buku Teks
Nehr, Lee Charles, author
International Textbook, 1967
Buku Teks
Nehr, Lee Charles, author
Intext Educational, 1972
Buku Teks
Chacholiades, Miltiades, author
McGraw-Hill, 1978
Buku Teks
Baker, James C., author
Prentice-Hall, 1998
Buku Teks