Gaya APA

Setyanto, A, C, A, S, S, ;, E, R, P. (2020). Program loyalitas pelanggan . Yogyakarta: Yogyakarta : Deepublish, 2020.

Gaya MLA

Setyanto, Aang, Curatman,, Agus, Suroso,, Suliyanto, ;, Editor,, Refius, Pradipta. "Program loyalitas pelanggan". Yogyakarta: Yogyakarta : Deepublish, 2020, 2020. Ebook.