Gaya APA
LG.Alexander, . (1990).
New Concept English : Fluency in English An Integrated Course For Advanced Students .
Yogyakarta:
Kanisius.
Gaya MLA
LG.Alexander, .
"New Concept English : Fluency in English An Integrated Course For Advanced Students".
Yogyakarta:
Kanisius,
1990.
Text.