Gaya APA
Alexander, L. (1994).
Practice and progress : an integrated course for pre-intermediate students / LG. Alexander .
Yogyakarta:
Kanisius.
Gaya MLA
Alexander, LG..
"Practice and progress : an integrated course for pre-intermediate students / LG. Alexander".
Yogyakarta:
Kanisius,
1994.
Buku.