Stein, Philip L., author
McGraw-Hill, 1982
Buku Teks
Haviland, William A., author
Erlangga, 1988
Buku Teks
Foster, George M., author
Brown and Comp, 1969
Buku Teks
Foster, George M., author
John Wiley & Sons, 1978
Buku Teks
Cochrane, Glynn, author
Oxford University Press, 1971
Buku Teks