Cita APA (7a ed.)

PENROSE, B. (1992). Presenting facts and figures: Study notes.-- ed.1. Universitas Terbuka and Depdikbud.

Cita Chicago Style (17a ed.)

PENROSE, Brenda. Presenting Facts and Figures: Study Notes.-- Ed.1. Jakarta: Universitas Terbuka and Depdikbud, 1992.

Cita MLA (9a ed.)

PENROSE, Brenda. Presenting Facts and Figures: Study Notes.-- Ed.1. Universitas Terbuka and Depdikbud, 1992.