Lecht, Charles Philip, author
McGraw-Hill, 1968
Buku Teks
Conway, Richard, author
Massachusetts Winthrop Publishers, 1975
Buku Teks
Conway, Richard, author
Winthrop Publishers, 1973
Buku Teks
Edwards, Leonard E., author
Reston Publishing, 1973
Buku Teks
Katzan, Harry, Jr., author
Auerbach, 1972
Buku Teks