Shepherd, William G.
Prentice-Hall, 1979
Buku Teks
Myers, Danny
Taylor and Francis, 2009
Buku Teks
Shutt, R.C.
Longman Scientific and Technical, 1995
Buku Teks
Tremblay, Victor J.
Springer, 2012
eBooks
Ofori, George
Singapore University Press, 1990
Buku Teks