Gaya APA
      Tjiptono, F., Agung, G. (2005).
    Service, quality & satisfaction (Ed. I).
    Yogyakarta:
  CV Andi Offset.
  
Gaya MLA
      Tjiptono, Fandy., Agung, Gregorius.
    "Service, quality & satisfaction".
    Ed. I
    Yogyakarta:
  CV Andi Offset,
  2005.
  Manajemen Administrasi D3.