Vonk, Roland
Prototyping : the effective use of CASE technology
Prentice-Hall, 1990
 Buku Teks
Millett, John D.
Management in the public service : the quest for effective performance / John D. Millett
McGraw-Hill, 1954
 Buku Teks
Ohara, John B.
Effective use of statistics in accounting and business : illustrative / Cases John B. Ohara and Richard C. Clelland
N,Y. Holt , 1964
 Buku Teks
Adair, John
Effective teambuilding/ John Adair
Pan Books, 1986
 Buku Teks
Black, Homer A
Accounting in business decisions: theory, method, and use / [by] Homer A. Black, John E. Champion [and] R. Gene Brown.
Prentice-Hall, 1967
 Buku Teks