Neubeck, Ken, author
Pearson Prentice Hall, 2004
Buku Teks
O`Connor, Patrick D.T., author
John Wiley & Sons, 1995
Buku Teks
by M.J. Crowder ... [et al.]
Chapman & Hall, 1991
Buku Teks
Ranganathan, R.
Tata McGraw-Hill, 1990
Buku Teks
Hollnagel, Erik, author
Academic Press, 1993
Buku Teks