Gaya APA
Trzeciak, J., Mackay, S. (1994).
Study skills for academic writing : teacher's book .
Hertfordshire:
Prentice Hall International.
Gaya MLA
Trzeciak, John., Mackay, S.E..
"Study skills for academic writing : teacher's book".
Hertfordshire:
Prentice Hall International,
1994.
BUKU.