Caudill, Maureen, author
MIT Press, 1990
Buku Teks
CRC Press, Taylor & Francis Group, 2011
Buku Referensi
Lin, Chin-Teng, author
Prentice-Hall, 1996
Buku Teks
Medsker, Larry, author
Macmillan Publishing company, 1994
Buku Teks
Melin, Patricia, author
[, Springer], 2012
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