Gaya APA
Pratama, I, P, A, E. (2019).
Customer Relationship Management (CRM) Teori Dan Praktik Open Source .
Bandung:
Penerbit Informatika.
Gaya MLA
Pratama, I, Putu, Agus, Eka.
"Customer Relationship Management (CRM) Teori Dan Praktik Open Source".
Bandung:
Penerbit Informatika,
2019.
Text.