Boschere, Jean De
Editions Du Cerele D`art, 1947
Buku Teks
Prentice-Hall, 1971
Buku Teks
Kanter, Jerome
Englewood Cliffs, N.J. Prentice-Hall 1992,
Buku Referensi
O`Brien, James J.
Primavera System, 2005
Multimedia
Jerome, Harry
Routledge , 1934
Buku Teks