APA Citation

Sutanto Leo, Ratna Dewanti, & Ines Mentari. (2017). English for professional airline services (Cet. 1.). Jakarta: Gramedia Pustaka Utama.

Chicago Style Citation

Sutanto Leo, Ratna Dewanti, and Ines Mentari. English for Professional Airline Services. Cet. 1. Jakarta: Gramedia Pustaka Utama, 2017.

MLA Citation

Sutanto Leo, Ratna Dewanti, and Ines Mentari. English for Professional Airline Services. Cet. 1. Jakarta: Gramedia Pustaka Utama, 2017.

Warning: These citations may not always be 100% accurate.