Gaya APA
Siregar, Haikal. (2016).
Berdoa di Atas Awan .
Jakarta:
Salsabila.
Gaya Chicago
Siregar, Haikal.
Berdoa di Atas Awan.
Jakarta:
Salsabila,
2016.
Non-fiction.
Gaya MLA
Siregar, Haikal.
Berdoa di Atas Awan.
Jakarta:
Salsabila,
2016.
Non-fiction.
Gaya Turabian
Siregar, Haikal.
Berdoa di Atas Awan.
Jakarta:
Salsabila,
2016.
Non-fiction.