Gallagher, Richard S.
The customer service survival kit: what to say to defuse even the worst customer situations
[American Management Association, ], 2013
 eBooks
Evenson, Ren`ee
Customer service training IOI: quick and easy techniques that get great results
Amacom, 2005
 Buku Teks
Gallagher, Richard S.
Great customer connections: simple psychological techniques that guarantee exceptional service
American Management Association, 2006
 eBooks
Evenson, Renee, 1951-
Customer service training 101 : quick and easy techniques that get great results
American Society for Training and Development, 2005
 eBooks
Lucas, Robert W.
Customer service : skills for success
McGrow-Hill, 2015
 Buku Teks