Gaya APA

Pratama, I, P, A, E. (2019). Customer Relationship Management (CRM) Teori dan Praktek Berbasis Open Source (1). Bandung: Penerbit Informatika.

Gaya MLA

Pratama, I, Putu, Agus, Eka. "Customer Relationship Management (CRM) Teori dan Praktek Berbasis Open Source". 1 Bandung: Penerbit Informatika, 2019. Text.