Gaya APA
KUSUMA, Yuriadi. (2010).
Creative problem solving .
Surakarta:
Rumah Pengetahuan.
Gaya Chicago
KUSUMA, Yuriadi.
Creative problem solving.
Surakarta:
Rumah Pengetahuan,
2010.
Text.
Gaya MLA
KUSUMA, Yuriadi.
Creative problem solving.
Surakarta:
Rumah Pengetahuan,
2010.
Text.
Gaya Turabian
KUSUMA, Yuriadi.
Creative problem solving.
Surakarta:
Rumah Pengetahuan,
2010.
Print.