Mendenhall, William, author
Duxbury Press, 1981
Buku Teks
Devore, Jay L, author
[Springer, ], 2012
eBooks
Dubhashi, Devdatt P., author
Cambridge university press, 2009
Buku Teks
Blank, Leland, author
McGraw-Hill, 1980
Buku Teks
Rambe, Adrianus, author
2016
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