Gaya APA
Ling, J., Smith, A.
(2004).
English 3A : Textbook
.
Singapore:
Federal Marhsall Cavendish Education.
Gaya MLA
Ling, Judy., Smith, Anne.
"English 3A : Textbook".
Singapore:
Federal Marhsall Cavendish Education,
2004.
.