Gaya APA
Ikranegara, Yudhistira. (2005).
Asal Mula Danau Toba .
Surabaya:
Cahaya Agency.
Gaya Chicago
Ikranegara, Yudhistira.
Asal Mula Danau Toba.
Surabaya:
Cahaya Agency,
2005.
Text.
Gaya MLA
Ikranegara, Yudhistira.
Asal Mula Danau Toba.
Surabaya:
Cahaya Agency,
2005.
Text.
Gaya Turabian
Ikranegara, Yudhistira.
Asal Mula Danau Toba.
Surabaya:
Cahaya Agency,
2005.
Print.