APA Style
LEO, Sutanto. (2017).
English for Professional Airline Services (Cetakan ke- 1).
Jakarta:
Gramedia Pustaka Utama.
Chicago Style
LEO, Sutanto.
English for Professional Airline Services.
Cetakan ke- 1
Jakarta:
Gramedia Pustaka Utama,
2017.
Text.
MLA Style
LEO, Sutanto.
English for Professional Airline Services.
Cetakan ke- 1
Jakarta:
Gramedia Pustaka Utama,
2017.
Text.
Turabian Style
LEO, Sutanto.
English for Professional Airline Services.
Cetakan ke- 1
Jakarta:
Gramedia Pustaka Utama,
2017.
Print.