Gaya APA

Rye, D, E. (1996). Tools for Executives : Wirausahawan (Entrepreneur), Buku 1 (1). : Prenhallindo.

Gaya MLA

Rye, David, E.. "Tools for Executives : Wirausahawan (Entrepreneur), Buku 1". 1 : Prenhallindo, 1996. Text.