Windlesham, Lord, author
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Buku Teks
Ainsworth, Peter B., author
Pearson Educatios, 2000
Buku Teks
Hagan, Frank E., author
Sage Publications, 2010
Buku Teks
Muncie, John, author
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Buku Teks
Wilson, James Q., author
A Touchstone Book, 1985
Buku Teks