Hamburg, Morris
Harcourt Brace Javanovich , 1974
Buku Teks
Smith, Lee H.
Wadsworth, 1971
Buku Teks
Smith, Norman O., author
Plenum Press, 1982
Buku Teks
Stoodley, K.D.C., author
John Wiley & Sons, 1980
Buku Teks
Montgomery, Douglas C., author
John Wiley & Son, 2003
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