Gaya APA

PRAMONO, P, R., SULISTYO, U. (2009). GIANT STEPS TO SUCCESSFUL BUSINESS WRITING (ED. 1). YOGYAKARTA: ANDI.

Gaya MLA

PRAMONO, PENI, R.., SULISTYO, ULE. "GIANT STEPS TO SUCCESSFUL BUSINESS WRITING". ED. 1 YOGYAKARTA: ANDI, 2009. Prodi S1 Sastra Inggris.