Gaya APA
ALEXANDER, L, G. (1987).
DEVELOPING SKILLS An Integrated Course For Intermediate Students .
YOGYAKARTA:
PENERBIT KANISIUS.
Gaya MLA
ALEXANDER, L., G..
"DEVELOPING SKILLS An Integrated Course For Intermediate Students".
YOGYAKARTA:
PENERBIT KANISIUS,
1987.
Text.