Gaya APA
Len,Evelyn, .
(1989).
Secondary 1 vocabulary guide & practice/Evelyn Len
.
Jakarta:
Binarupa Aksara.
Gaya MLA
Len,Evelyn, .
"Secondary 1 vocabulary guide & practice/Evelyn Len".
Jakarta:
Binarupa Aksara,
1989.
Text.