Gaya APA
CONDRILL, J., Bough, B. (2007).
101 Ways to Improve Your Communication Skills Instantly (Fourth Edition).
San Antonio:
GoalMinds, Inc..
Gaya MLA
CONDRILL, Jo., Bough, Bennie.
"101 Ways to Improve Your Communication Skills Instantly".
Fourth Edition
San Antonio:
GoalMinds, Inc.,
2007.
Text.