Sussman, Maurice
Prentice-Hall, 1964
Buku Teks
Hopper, Arthur F.
Oxford University Press, 1985
Buku Teks
Wilkins, Adam S.
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Buku Teks
Dalcq, Albert, 1893-
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Buku Teks
Papalia, Diane E.
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Buku Teks SO