edited, Catherine S. Chilman
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Buku Teks
Simons, Ronald L.
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Buku Teks
Thomlison, Barbara
Brooks/Cole Thomson Learning, 2002
Buku Teks
Farley, O. William, 1934-
Pearson Education, 2012
Buku Teks
Keefe, Robert H.
Springer Publishing Company, 2013
Buku Teks