Kasmir
Etika customer service
RajaGrafindo Persada, 2005
 Buku Teks
Kasmir
Etika customer service / Kasmir
RajaGrafindo Persada, 2005
 Buku Teks
Gallagher, Richard S.
Great customer connections: simple psychological techniques that guarantee exceptional service
American Management Association, 2006
 eBooks
Feki Wahyu Colimah
Analisis Time-Driven Activity-Based Costing Untuk Meningkatkan Profitabilitas Pelanggan PT. X (Studi Kasus Pada Distributor Alat Berat) = Analysis Of Time-Driven Activity-Based Costing To Increase Customer Profitability (A Case Study Of Heavy Equipment Distributor)
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2022
 UI - Tesis Membership
Zemke, Ron
Knock your socks off service recovery
[American Management Association, ], 2000
 eBooks