Campbell, Stephen L., author
Wadsworth, 1990
Buku Teks
Farlow, Stanley J., author
McGraw-Hill, 1994
Buku Teks
Adkins, William A., author
[Springer, ], 2012
eBooks
Rainville, Earl D.
Macmillan, 1981
Buku Teks
Gear, C. William (Charles William), 1935-, author
Prentice-Hall, 1971
Buku Teks