TJIPTONO, F. (2016). Service, Quality dan Satisfaction. Andi Offset.
Lua i Stíl Chicago (17ú heag.)TJIPTONO, Fandy. Service, Quality Dan Satisfaction. Andi Offset, 2016.
Lua MLA (8ú heag.)TJIPTONO, Fandy. Service, Quality Dan Satisfaction. Andi Offset, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.