Hahn, Man-Young
Tamgu Dang , 1990
Buku Teks
Kluckhohn, Clyde
McGraw-Hill, 1949
Buku Teks
Albus, Harry James, author
Wm. B. Eerdmans, 1958
Buku Teks
Simpson, George Gaylord, author
Yale University Press, 1952
Buku Teks
Simpson, George Gaylord, author
Yale University Press, 1967
Buku Teks