Spain, Bryan, author
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Andrew R. Williams, author
Taylor & Francis, 2008
Buku Teks
Leonard, Dick
Macmillan, 1992
Buku Teks
Grow, Thomas A.
Prentice-Hall, 1975
Buku Teks
Ching, Francis D.K., 1943-, author
John Wiley & Sons, 2003
Buku Teks