Gaya APA

Rahardi, K., Indrojiono, F. (2007). Communicative English for Business & Public Relations Services (Cetakan Pertama, Oktober 2007). Yogyakarta: Amara Books.

Gaya MLA

Rahardi, Kunjana., Indrojiono, F.X.. "Communicative English for Business & Public Relations Services". Cetakan Pertama, Oktober 2007 Yogyakarta: Amara Books, 2007. Text.