APA Style
Ph.D, P, J, S.
(2010).
Improve Your Toefl Vocabulary in Seconds
.
Jogjakarta:
Diva Press.
MLA Style
Ph.D, Pamela, J., Sharpe,.
"Improve Your Toefl Vocabulary in Seconds".
Jogjakarta:
Diva Press,
2010.
Buku PGSD.