Gaya APA
calculus ninth edition. (2007).
London:
Prentice Hall International.
Gaya Chicago
calculus ninth edition.
.
London:
Prentice Hall International,
2007.
Buku.
Gaya MLA
calculus ninth edition.
.
London:
Prentice Hall International,
2007.
Buku.
Gaya Turabian
calculus ninth edition.
London:
Prentice Hall International,
2007.
Buku.