کتاب های Performance Research Associates
101 Activities for Delivering Knock Your Socks Off Service (Knock Your Socks Off Series)
Performance Research Associates, Ann Thomas, Jill Applegate, 2009
Delivering Knock Your Socks Off Service
Performance Research Associates, 2006
Delivering Knock Your Socks Off Service
Performance Research Associates, 2011
Delivering Knock Your Socks Off Service (Knock Your Socks Off Series), 3rd edition
Performance Research Associates, 2002
