Tippet, L.H.C.
Oxford University Press, 1950
Buku Teks
Plehn, Tilman, author
[Springer, ], 2012
eBooks
McClave, James T., author
Prentice-Hall, 2000
Buku Teks
McClave, James T., author
Dellen Publishing, 1979
Buku Teks
Hays, William Lee, 1926-1995, author
Harcourt Brace Colege, 1994
Buku Teks