Gaya APA
Creative problem solving. (515).
:
491.
Gaya Chicago
Creative problem solving.
Mcgraw.
:
491,
515.
Lumsdaine Edward.
Gaya MLA
Creative problem solving.
Mcgraw.
:
491,
515.
Lumsdaine Edward.
Gaya Turabian
Creative problem solving.
:
491,
515.
Lumsdaine Edward.