Gaya APA

pratama, I, P, A, E. (2019). Customer Relationship Management (CRM) teori dan praktek berbasis open source . Bandung: Penerbit Informatika.

Gaya MLA

pratama, I, Putu, Agus, Eka. "Customer Relationship Management (CRM) teori dan praktek berbasis open source". Bandung: Penerbit Informatika, 2019. Text.