Gaya APA
S.S., B, A.
(2010).
The Power Of Positive Thinking
(
-, Cet 1)
.
Yogyakarta:
Citra Risalah.
Gaya MLA
S.S., Bilif, Abduh,.
"The Power Of Positive Thinking".
-, Cet 1
Yogyakarta:
Citra Risalah,
2010.
Non Fiksi.