Gaya APA

Pramono, P, R. (2006). 30 menit essay writing, writing is easy (Cet. 1). YOGYAKARTA: ANDI OFFSET.

Gaya MLA

Pramono, Peni, R. "30 menit essay writing, writing is easy". Cet. 1 YOGYAKARTA: ANDI OFFSET, 2006. Text.