Gaya APA
Successfull Intelligence. (2008).
Yogyakarta:
arti bumi intaran.
Gaya Chicago
Successfull Intelligence.
.
Yogyakarta:
arti bumi intaran,
2008.
Buku.
Gaya MLA
Successfull Intelligence.
.
Yogyakarta:
arti bumi intaran,
2008.
Buku.
Gaya Turabian
Successfull Intelligence.
Yogyakarta:
arti bumi intaran,
2008.
Buku.