Gaya APA
Pratama, I, P, A, E.
(2019).
Customer Realitionship management
.
Bandung:
Penerbit Informatika.
Gaya MLA
Pratama, I, Putu, Agus, Eka.
"Customer Realitionship management".
Bandung:
Penerbit Informatika,
2019.
Text.