Gaya APA

se, D, I, M, &, D, Y, D. (2003). What The Best Ceo's Know : 7 Exceptional Leaders And Their Lessons For Transforming Any Business . New York: mcgraw-hill inc..

Gaya MLA

se, Drs., Ir.tukirin,, Mm, &, Drs., Yusdi, Daulay,. "What The Best Ceo's Know : 7 Exceptional Leaders And Their Lessons For Transforming Any Business". New York: mcgraw-hill inc., 2003. Text.