Yeager, Leland B., author
Holt, Rinehart, and Winston, 1968
Buku Teks
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