Gaya APA

SIAGIAN, E, N., SUTRISNO, A. (2004). INTENSIVE ENGLISH FOR FLIGHT ATTENDANTS (PERTAMA). Malang: BAYUMEDIA PUBLISHING.

Gaya MLA

SIAGIAN, EMIL, N.., SUTRISNO, ADI. "INTENSIVE ENGLISH FOR FLIGHT ATTENDANTS". PERTAMA Malang: BAYUMEDIA PUBLISHING, 2004. Buku Teks.