Gaya APA
Riyanto, S.
(2002).
The Easy Way to Master English in a Few Days
(
Edisi 1)
.
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"The Easy Way to Master English in a Few Days".
Edisi 1
Yogyakarta:
Pustaka Pelajar,
2002.
Text.