Callahan, Madelyn
From training to performance consulting: human performance improvement
[American Society for Training and Development Press, American Society for Training and Development Press], 2006
 eBooks
Gendelman, Joel
Consulting basics
American Society for Training & Development, 2010
 eBooks
Bayu Perkasa Temadja
Analisis strategi pemasaran jasa di industri headhunter (studi kasus PT. Global Liaquat Consulting) = Analysis of service marketing strategy in the headhunter industry (case study ofP7T Global Liaquat Consulting)
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2010
 UI - Tesis Open
Cope, Mick
The seven Cs of consulting : the definitive guide to the consulting process
Financial Times Prentice Hall, 2003
 Buku Teks
Gendelman, Joel
Consulting basics / Joel Gendelman
ASTD Press, 2010
 Buku Teks