Brown, Curtis M.
Evidence and procedures for boundary location / Curtis M. Brown
John Wiley & Sons, 1981
 Buku Teks
Rohrs, Charles E.
Linear control systems / Charles E. Rohrs, James L. Melsa, Donald G. Schultz
McGraw-Hill, 1993
 Buku Teks SO
Creighton, Donald G.
The empire of the St.Lawrence / Donald G. Creighton
Macmillan of Canada, 1970
 Buku Teks SO
Friedman, Avner
Variational principles and free-boundary problems
John Wiley & Sons, 1982
 Buku Teks SO
Meigs, Walter B.
Principles of auditing Walter B. Meigs
Homewood Richard D.Irwin, Inc. 1959,
 Buku Teks