Gaya APA

Pratama, I, P, A, E. (2019). Customer relationship management (CRM) teori dan praktek berbasis open source . Bandung: Informatika Bandung.

Gaya MLA

Pratama, I, Putu, Agus, Eka. "Customer relationship management (CRM) teori dan praktek berbasis open source". Bandung: Informatika Bandung, 2019. Sistem Informasi S1.