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
Mundrey, J.S., author
Tata McGraw-Hill, 2000
Buku Teks
Cameron, J.M., author
British Council, 1884
Buku Teks