Gaya APA
Alexander,L.G, . (2004).
Developing skills:an integrated course for intermediate students / L.G Alexander .
Yogyakarta:
Kanisius.
Gaya MLA
Alexander,L.G, .
"Developing skills:an integrated course for intermediate students / L.G Alexander".
Yogyakarta:
Kanisius,
2004.
Text.