Gaya APA
Riyanto, S.
(2011).
Easy Writing A Letter of Aplication in English
(
1)
.
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"Easy Writing A Letter of Aplication in English".
1
Yogyakarta:
Pustaka Pelajar,
2011.
Text.