Gaya APA

Sutrisno, A., Siagian, E, N. (2004). Intensive english for flight attendants / Emil N. Siagian, Adi Sutrisno (Ed.ke-1, Cet.1). Malang: .

Gaya MLA

Sutrisno, Adi., Siagian, Emil, N.. "Intensive english for flight attendants / Emil N. Siagian, Adi Sutrisno". Ed.ke-1, Cet.1 Malang: , 2004. Textbook.