Gaya APA

Sulistyo, P, R, &, U. (2017). 5 Giant Steps To Successful Business Writing (Ed.1). Yogyakarta: ANDI.

Gaya MLA

Sulistyo, Peni, R.Pramono, &, Ule. "5 Giant Steps To Successful Business Writing". Ed.1 Yogyakarta: ANDI, 2017. Text.