Aldine Publishing Company, 1964
Buku Teks
Barnett, H.G., author
Row, Peterson , 1956
Buku Teks
Jacobs, Melville, author
Barnes & Noble, Inc., 1948
Buku Teks
Stein, Philip L., author
McGraw-Hill, 1982
Buku Teks
Haviland, William A., author
Erlangga, 1988
Buku Teks