Kasmir
Etika customer service / Kasmir
RajaGrafindo Persada, 2005
 Buku Teks
Kasmir
Etika customer service
RajaGrafindo Persada, 2005
 Buku Teks
Gallagher, Richard S.
The customer service survival kit: what to say to defuse even the worst customer situations
[American Management Association, ], 2013
 eBooks
Gallagher, Richard S.
Great customer connections: simple psychological techniques that guarantee exceptional service
American Management Association, 2006
 eBooks
Muhammad Iqbal
Pengaplikasian Time Driven Activity Based Costing untuk Meningkatkan Profitabilitas pada Perusahaan Asuransi Umum X = The Apllication of Time Driven Activity Based Costing to Increase The Profitability of General Insurance X.
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2018
 UI - Tesis Membership