Gaya APA
Gerungan Saul Samuel Jacob Ratulangi. (2010).
Jakarta:
Mutiara Sumber Widya.
Gaya Chicago
Gerungan Saul Samuel Jacob Ratulangi.
2010.
Jakarta:
Mutiara Sumber Widya,
2010.
Text.
Gaya MLA
Gerungan Saul Samuel Jacob Ratulangi.
2010.
Jakarta:
Mutiara Sumber Widya,
2010.
Text.
Gaya Turabian
Gerungan Saul Samuel Jacob Ratulangi.
Jakarta:
Mutiara Sumber Widya,
2010.
Print.