Blanchard, Benjamin S., author
Prentice-Hall, 1998
Buku Teks
Blanchard, Benjamin S., author
Pearson Education Limited, 2014
Buku Teks
Blanchard, Benjamin S., author
Prentice-Hall, 2006
Buku Teks
Merritt, Frederick S., author
McGraw-Hill, 1995
Buku Referensi
ReVelle, Charles S., author
Prentice-Hall, 1997
Buku Teks