Gaya APA
L.G.Alexander, . (2005).
Developing Skills An Intergrated Course For Intermediate Students (Cet.25).
Bandung:
Kanisius.
Gaya MLA
L.G.Alexander, .
"Developing Skills An Intergrated Course For Intermediate Students".
Cet.25
Bandung:
Kanisius,
2005.
Text.