Gilmore, John V
The Productive personality / John V.Gilmore.
Albion Publishing Company, 1974
 Buku Teks
Falcone, Paul
Productive performance appraisals
American Management Association, 2007
 eBooks
Creating the productive workplace
Clements-Crome, editor
E & FN Spon, 2000
 Buku Teks
Murphy, Lawrence R.
Healthy and productive work: an international perspective
Taylor and Francis, 2000
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DeMarco, Tom
Peopleware : productive projects and teams/ Tom DeMarco
Dorset House Publishing, 1999
 Buku Teks