Field, Henry
Doubleday, 1953
Buku Teks
by John C. Dvorak ... [and others]
Osborne McGraw-Hill , 1992
Buku Teks
Kuhn, Herbert, author
Random House, 1955
Buku Teks
Wongar, B., author
Angus & Robertson, 1978
Buku Teks
Mundrey, J.S., author
Tata McGraw-Hill, 1988
Buku Teks