edited by Glenys Parry and Fraser N. Watts
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Buku Teks
edited by Theodore Eliades
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Buku Teks
Jacobsen, Kathryn H.
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Buku Teks
Wood, Marilynn J.
Jones and Bartlett , 2011
Buku Teks
Abbas Tashakkori, Charles Teddlie
SAGE Publications, 2010
Buku Teks