Gaya APA
BOARDMAN, JOHN. (2008).
SYSTEMS THINKING .
USA:
CRC PRESS.
Gaya Chicago
BOARDMAN, JOHN.
SYSTEMS THINKING.
USA:
CRC PRESS,
2008.
Text.
Gaya MLA
BOARDMAN, JOHN.
SYSTEMS THINKING.
USA:
CRC PRESS,
2008.
Text.
Gaya Turabian
BOARDMAN, JOHN.
SYSTEMS THINKING.
USA:
CRC PRESS,
2008.
Print.