Gaya APA
L.G.Alexander, . (2003).
First things first students Book an integrated course for beginners / L.G.Alexander .
Yogyakarta:
Kanisius.
Gaya MLA
L.G.Alexander, .
"First things first students Book an integrated course for beginners / L.G.Alexander".
Yogyakarta:
Kanisius,
2003.
Text.