Gaya APA
Djajadiningrat, S, T. (1990).
Word power 3000:vocabulary tests and exercises/L.A. Hill (Cet.5).
Yogyakarta ;:
Oxford.
Gaya MLA
Djajadiningrat, Surna, T..
"Word power 3000:vocabulary tests and exercises/L.A. Hill".
Cet.5
Yogyakarta ;:
Oxford,
1990.
.