Gaya APA
      Purwaningtias, D. et al (2020).
    E-Business : Konsep Dasar E-Business di Era Digital (Ed. 1 Cet. 1).
    Yogyakarta:
  Graha Ilmu.
  
Gaya MLA
      Purwaningtias, Deasy. et al.
    "E-Business : Konsep Dasar E-Business di Era Digital".
    Ed. 1 Cet. 1
    Yogyakarta:
  Graha Ilmu,
  2020.
  Text.