Gaya APA
O'TOOLE, J. (2003).
LEADERSHIP A TO Z A GUIDE FOR THE APPROPRIATELY AMBITIOUS .
JAKARTA:
PENERBIT ERLANGGA.
Gaya MLA
O'TOOLE, JAMES.
"LEADERSHIP A TO Z A GUIDE FOR THE APPROPRIATELY AMBITIOUS".
JAKARTA:
PENERBIT ERLANGGA,
2003.
PENDIDIKAN BAHASA INGGRIS.