Artikel Jurnal
Rao, Chandra Gopala, author
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Johnson, Curtis D., 1939-, author
Pearson/Prentice Hall, 2006
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Johnson, Curtis D., 1939-, author
Prentice Hall Career and Technology, 1993
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Johnson, Curtis D., 1939-, author
John Wiley & Sons, 1977
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