Gaya APA

BROOKS, D, D., BROOKS, D, L. (2007). 10 SECRETS OF SUCCESSFUL LEADERS . JAKARTA: PT BHUANA ILMU POPULER.

Gaya MLA

BROOKS, DR., DONBNA., BROOKS, DR., LYNN. "10 SECRETS OF SUCCESSFUL LEADERS". JAKARTA: PT BHUANA ILMU POPULER, 2007. Text.