Gaya APA
Graaff, K, V, D., R.W., R.
(2001).
Schaum's_easy_out(BookFi.org)
.
KEDIRI:
PEARSON EDUCATION.
Gaya MLA
Graaff, Kent, Van, De., R.W., Rhees.
"Schaum's_easy_out(BookFi.org)".
KEDIRI:
PEARSON EDUCATION,
2001.
PERAWAT.