Gaya APA
Canfield, Jack, Hansen, Mark Victor, Hewitt, Les, Saputra, Lyndon, Saputra, Arvin. (2004).
Kekuatan dari fokus (the power of focus) .
Batam Centre:
Karisma Press.
Gaya Chicago
Canfield, Jack, Hansen, Mark Victor, Hewitt, Les, Saputra, Lyndon, Saputra, Arvin.
Kekuatan dari fokus (the power of focus).
Batam Centre:
Karisma Press,
2004.
Text.
Gaya MLA
Canfield, Jack, Hansen, Mark Victor, Hewitt, Les, Saputra, Lyndon, Saputra, Arvin.
Kekuatan dari fokus (the power of focus).
Batam Centre:
Karisma Press,
2004.
Text.
Gaya Turabian
Canfield, Jack, Hansen, Mark Victor, Hewitt, Les, Saputra, Lyndon, Saputra, Arvin.
Kekuatan dari fokus (the power of focus).
Batam Centre:
Karisma Press,
2004.
Print.