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Macmillan, 1991
Buku Teks
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Buku Teks
Johansson, Johny K., author
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Buku Teks
Martani Huseini, author
Pusat Antar Universitas-Ilmu Sosial-Unversitas Indonesia, 1992
Buku Teks
Mathieson, Rick, author
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