Gaya APA

Pramono, P, R. (2006). 30 MENIT ESSAY WRITING, WRITING IS EASY (Ed. 1). YOGYAKARTA: ANDI OFFSET.

Gaya MLA

Pramono, Peni, R.. "30 MENIT ESSAY WRITING, WRITING IS EASY". Ed. 1 YOGYAKARTA: ANDI OFFSET, 2006. Text.