Richard Jessor, editor
Westview Press, 1991
Buku Teks SO
Copstead, Lee-Ellen C.
W.B. Saunders, 2000
Buku Teks SO
Copstead, Lee-Ellen C.
W.B. Saunders, [Date of publication not identified]
Buku Teks SO
Colorado : Department of English 9105 CampusDelivery Colorado State University
Majalah, Jurnal, Buletin
Tremblay, Victor J.
Springer, 2012
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