APA Style
      Zeithaml, Valarie A., Bitner, mary Jo. (1996).
    Services Marketing (1 st ed.).
    Singapore:
  Mc Graw-Hill.
  
Chicago Style
      Zeithaml, Valarie A., Bitner, mary Jo.
    Services Marketing.
    1 st ed.
    Singapore:
  Mc Graw-Hill,
  1996.
  Magister Manajemen.
  
IEEE Style
  *IEEE style untuk Skripsi
      Zeithaml, Valarie A., Bitner, mary Jo.
    (1996).
    Services Marketing.
    1 st ed..
  Singapore:
  Mc Graw-Hill.
  
*IEEE style untuk Buku/Jurnal
      Zeithaml, Valarie A., Bitner, mary Jo.
    Services Marketing.
    1 st ed..
  Singapore:
  Mc Graw-Hill,
  1996.
  
MLA Style
      Zeithaml, Valarie A., Bitner, mary Jo.
    Services Marketing.
    1 st ed.
    Singapore:
  Mc Graw-Hill,
  1996.
  Magister Manajemen.
  
Turabian Style
      Zeithaml, Valarie A., Bitner, mary Jo.
    Services Marketing.
    1 st ed. 
    Singapore:
  Mc Graw-Hill,
  1996.
  Magister Manajemen.