Gaya APA
Riley, Peter D,, Virsa Sari Widuri, Carole Binding. (2003).
Di Kutub .
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Riley, Peter D,, Virsa Sari Widuri, Carole Binding.
Di Kutub.
Jakarta:
Elex Media Komputindo,
2003.
Sains.
Gaya MLA
Riley, Peter D,, Virsa Sari Widuri, Carole Binding.
Di Kutub.
Jakarta:
Elex Media Komputindo,
2003.
Sains.
Gaya Turabian
Riley, Peter D,, Virsa Sari Widuri, Carole Binding.
Di Kutub.
Jakarta:
Elex Media Komputindo,
2003.
Sains.