Gaya APA
Ola, P.
(2009).
Teman Khayalan
(
Cat 1)
.
Yogyakarta:
Penerbitan Sarana Bobo.
Gaya MLA
Ola, Pustaka.
"Teman Khayalan".
Cat 1
Yogyakarta:
Penerbitan Sarana Bobo,
2009.
.