Gaya APA
Attar, Chairul. (2012).
Sang Penatap Langit (Cet.1).
Yogyakarta:
Najah.
Gaya Chicago
Attar, Chairul.
Sang Penatap Langit.
Cet.1
Yogyakarta:
Najah,
2012.
Text.
Gaya MLA
Attar, Chairul.
Sang Penatap Langit.
Cet.1
Yogyakarta:
Najah,
2012.
Text.
Gaya Turabian
Attar, Chairul.
Sang Penatap Langit.
Cet.1
Yogyakarta:
Najah,
2012.
Print.