Smarandache, Florentin
Hexis, 2005
Buku Teks
Omnes, Roland
Princeton University Prees, 1994
Buku Teks
Townsend, John S.
University Science Books, 2012
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Gitman D. M.
Springer , 2012
eBooks
Taylor, Philip L. (Philip Liddon), 1937-
Cambridge University Press, 2004
Buku Teks