Boguslavsky, B.L.
Peace Publishers , [date of publication not identified]
Buku Teks
Kuo, Benjamin Chung-i, 1930-
Prentice-Hall, 1987
Buku Teks SO
Grefenstette, Gregory
Kluwer Academic, 1994
Buku Referensi
Birch, Tom
Pearson - Prentice Hall, 2006
Buku Teks
Birch, Thomas
Pearson Education, 2006
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