Gaya APA
      Sung, Yongjun. (2007).
    Brand commitment in consumer – brand relationships: An investment model approach .
    :
  .
  
Gaya Chicago
      Sung, Yongjun.
    Brand commitment in consumer – brand relationships: An investment model approach.
    
    :
  ,
  2007.
  Journal.
  
Gaya MLA
      Sung, Yongjun.
    Brand commitment in consumer – brand relationships: An investment model approach.
    
    :
  ,
  2007.
  Journal.
  
Gaya Turabian
      Sung, Yongjun.
    Brand commitment in consumer – brand relationships: An investment model approach.
     
    :
  ,
  2007.
  Journal.