Pressman, Andy
Wiley, 2006
Buku Teks
Gulden, Pieter Hendrik van der
Van Gorcum, 1943
Buku Teks
Beckhard, Arthur, author
G.P. Putnam`s Sons, 1959
Buku Teks
Sharples Holden Pasquarelli, editor
Wiley, 2002
Buku Teks
Wilson, Forrest, 1918-, author
Van Nostrand Reinhold, 1990
Buku Referensi