Gaya APA

mm, D, A, H, A, M, &, D, T. (2002). The Leadership Challenge: Third Edition (Ed. 3). San Fransisco: jossey-bass.

Gaya MLA

mm, Drs., Ahmad, H,, Abubakar,, Mm, &, Drs.ir., Tukiran,. "The Leadership Challenge: Third Edition". Ed. 3 San Fransisco: jossey-bass, 2002. Text.