Nelson, Bob
1001 ways to reward employees
Workman Publishing Company, 1994
 Buku Teks
Pengaruh spiritual capital dan insentif terhadap kinerja karyawan
 Artikel Jurnal
Deeprose, Donna
How to recognize & reward employees: 150 ways to inspire peak performance
American Management Association;, 2006
 eBooks
Strategic reward systems
edited by Richard Thorpe and Gill Homan
Prentice-Hall, 2000
 Buku Teks
Strategic reward systems
Richard Thorpe, Gill Homan, editor
Financial Times Prentice Hall, 2000
 Buku Teks