Gaya APA
Covey, S, R. et al
(2016).
How to Succeed with People
.
Surabaya:
MIC (PT Menuju Insan Cemerlang).
Gaya MLA
Covey, Stephen, R.. et al.
"How to Succeed with People".
Surabaya:
MIC (PT Menuju Insan Cemerlang),
2016.
Book.