edited by Laura Nader
Berkeley University of California , 1997
Buku Teks
Cambridge University Press, 2004
Buku Teks
edited by Kwesi Owusu
Routledge , 2000
Buku Teks
Schur, Edwin M.
Random House, 1968
Buku Teks
Universitas Indonesia,
Majalah, Jurnal, Buletin