Gaya APA
Diyan, Y.
(2010).
Mengapa Aku Merasa Tak Bahagia
.
Yogyakarta:
Diva Press.
Gaya MLA
Diyan, Yulianto.
"Mengapa Aku Merasa Tak Bahagia".
Yogyakarta:
Diva Press,
2010.
Printed Book.