Gaya APA
      Agung, A., Yoevestian, W. (2024).
    The Optimization of Digital Marketing .
    Jakarta:
  PT. Elex Media Komputindo.
  
Gaya MLA
      Agung, Andreas., Yoevestian, Whindy.
    "The Optimization of Digital Marketing".
    
    Jakarta:
  PT. Elex Media Komputindo,
  2024.
  Text.