Gaya APA

dkk, . et al (2023). Relationship Marketing: Lintegrating Quality, Customer Service, and Marketing . Purwokerto: UM Purwokerto Press.

Gaya MLA

dkk, . et al. "Relationship Marketing: Lintegrating Quality, Customer Service, and Marketing". Purwokerto: UM Purwokerto Press, 2023. Textbook.