Gaya APA
Canfield, Jack, Victor, Mark, Hewitt, Les. (2004).
Kekuatan dari Fokus ( The Power of Focus) (Cet.1).
Batam:
karisma Press.
Gaya Chicago
Canfield, Jack, Victor, Mark, Hewitt, Les.
Kekuatan dari Fokus ( The Power of Focus).
Cet.1
Batam:
karisma Press,
2004.
Text.
Gaya MLA
Canfield, Jack, Victor, Mark, Hewitt, Les.
Kekuatan dari Fokus ( The Power of Focus).
Cet.1
Batam:
karisma Press,
2004.
Text.
Gaya Turabian
Canfield, Jack, Victor, Mark, Hewitt, Les.
Kekuatan dari Fokus ( The Power of Focus).
Cet.1
Batam:
karisma Press,
2004.
Print.