APA Style

Ramli, I, S. (2023). The power of ultimate service culture: solusi membangun engaging customer di berbagai industri . Jakarta: PT. Gramedia Pustaka Utama.

MLA Style

Ramli, Iin, Supriyatin. "The power of ultimate service culture: solusi membangun engaging customer di berbagai industri". Jakarta: PT. Gramedia Pustaka Utama, 2023. Text.