Engles, Friderick
Foreign Languages Publishing House , 1956
Buku Teks
Johnson, Chalmers, 1931-2010, author
Stanford university press, 1962
Buku Teks
Redfield, Robert, author
The University of Chicago Press, 1963
Buku Teks
Scott, James C., author
Yale University Press, 1976
Buku Teks
Nash, Manning
Chandler Publishing Company, 1966
Buku Teks