Stearns, Peter N., author
Macmillan, 1967
Buku Teks
Israel Kleiner
[Springer, ], 2012
eBooks
Katz, Victor J., author
HarperCollins, 1993
Buku Teks
Eves, Howard, author
Holt, Rinehart and Winston, 1964
Buku Teks
Evans, Richard J., author
Routledge, 1997
Buku Teks