Gaya APA

Pramono,Peni, . (2009). 30 Menit Essay Wrriting, Writing is Essay (Ed II). Yogyakarta: Andi.

Gaya MLA

Pramono,Peni, . "30 Menit Essay Wrriting, Writing is Essay". Ed II Yogyakarta: Andi, 2009. Text.