Soule, George, author
Pustaka Rakjat, 1952
Buku Teks
Gill, Richard Thomas, 1927-2010, author
Prentice-Hall, 1967
Buku Teks
Gherity, James A., author
Random House, 1965
Buku Teks
Stark, W., author
Kegan Paul, Trenck, Trubner & Co., 1945
Buku Teks
M. Djuhari Wirakartakusumah, author
Departemen Pendidikan dan Kebudayaan, 1998
Buku Teks