Birch, Tom
Pearson - Prentice Hall, 2006
Buku Teks
Thiessen, Frank J.
Reston Publishing, 1984
Buku Teks
Erwin-Christian Lovasz, Burkhard Corves, editors
[Springer, ], 2012
eBooks
Dini Mayangsari
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UI - Tugas Akhir
Boguslavsky, B.L.
Peace Publishers , [date of publication not identified]
Buku Teks SO