Thomson, John F.
Reinhold Publ., 1962
Buku Teks SO
Yasuma, Shigeki
PUSREHUT, 1990
Buku Referensi
Jamie V. Trapp, Tomas Kron, editor
Taylor & Francis Group, 2008
Buku Teks
Frankel, Robert, author
John Wiley & Sons, 1976
Buku Teks
Prince, Robert, author
Springer, 2012
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