Gaya APA
Dachjar, D. (2004).
Increase Your Toefl Score : A Solution to Your TOEFL Problems (Cet. II).
Jakarta :
Puspa Swara.
Gaya MLA
Dachjar, Dadang.
"Increase Your Toefl Score : A Solution to Your TOEFL Problems".
Cet. II
Jakarta :
Puspa Swara,
2004.
Buku.