Gaya APA

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

Gaya MLA

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