Gaya APA
MS.., D, B, S.
(2002).
Seven Steps How to Mastery The English
.
Yogyakarta:
Dua Dunia.
Gaya MLA
MS.., Dr., Bustami, Subhan,.
"Seven Steps How to Mastery The English".
Yogyakarta:
Dua Dunia,
2002.
Text.