Gaya APA
Cyssco, D, R.
(2008).
TOEFL Test Preparation Models & Problem Solving
.
Depok:
Puspa Swara.
Gaya MLA
Cyssco, Dhanny, R..
"TOEFL Test Preparation Models & Problem Solving".
Depok:
Puspa Swara,
2008.
Text.