Gaya APA

Z.A., S., PURWANTO, D, [. (2003). Kewirausahaan . : Sebelas Maret University Press.

Gaya MLA

Z.A., SUYATNO., PURWANTO, Djoko, [ed.]. "Kewirausahaan". : Sebelas Maret University Press, 2003. Buku.