Gaya APA
Wirtz, J., Lovelock, C. (2023).
Services Marketing : Manusia, Teknologi, Strategi .
Jakarta:
Gramedia Pustaka.
Gaya MLA
Wirtz, Jochen., Lovelock, Christopher.
"Services Marketing : Manusia, Teknologi, Strategi".
Jakarta:
Gramedia Pustaka,
2023.
.