Stiehm, E.Richard
W. B Saunders , 1996
Buku Teks
Vinson, Betsy Partin, author
Delmar Cengage Learning, 2012
Buku Teks
Paul Frowen, author
Elsevier, 2010
Buku Teks
Wright, Edward F., author
Wiley Blackwell, 2010
Buku Referensi
Stratton, Robert D., editor
Springer, 2012
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