Burgelman, Robert A., author
McGraw-Hill, 2001
Buku Teks
Millson, Murray R.
Pearson Education, 2007
Buku Teks
S. E Stephanou
Daniel Spencer Pubs, 1980
Buku Teks
University of technology,
Majalah, Jurnal, Buletin
by Paul Trott ... [and others]
Routledge, 2016
Buku Teks