Richard Jessor, editor
Westview Press, 1991
Buku Teks
edited by Richard Jessor
Westview Press, 1991
Buku Referensi
Copstead, Lee-Ellen C., author
W.B. Saunders , 2000
Buku Teks
Copstead, Lee-Ellen C., author
W.B. Saunders, [date of publication not identified]
Buku Teks
Colorado : Department of English 9105 CampusDelivery Colorado State University
Majalah, Jurnal, Buletin