Nunnally, Stephen. W., 1927-, author
Prentice-Hall, 1993
Buku Teks
O`Brien, James Jerome
Primavera System, 2005
Multimedia
Varma, Mahesh, author
Metropolitan Book, 1980
Buku Teks
McNulty, Alfred P.
McGraw-Hill, 1982
Buku Teks
Myers, Danny, author
Taylor and Francis, 2009
Buku Teks