Gaya APA

Sugiarto, E., Sugiarto, E. (). Operasional Kantor Depan Hotel (Hotel Front Office Operationals) (4). Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Sugiarto, Endar., Sugiarto, Endar. "Operasional Kantor Depan Hotel (Hotel Front Office Operationals)". 4 Jakarta: Gramedia Pustaka Utama, . Text.