Gaya APA
Watkins, M. (2013).
The First 90 Days : Proven Strategies For Getting Up To Speed Faster And Smarter .
Jakarta Selatan:
.
Gaya MLA
Watkins, Michael.
"The First 90 Days : Proven Strategies For Getting Up To Speed Faster And Smarter".
Jakarta Selatan:
,
2013.
.