Gaya APA

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

Gaya MLA

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