Chicago : The University of Chicago Press
Majalah, Jurnal, Buletin
Santa Fe : University of New Mexico
Majalah, Jurnal, Buletin
Menno, S.
RajaGrafindo Persada, 1994
Buku Teks
Howard, Michael C.
HarperCollins, 1993
Buku Teks
Nelson, Harry
New York West 1988,
Buku Teks