Gaya APA

D.F.,M.Psi, F, N. (2019). Panduan lengkap menyusun SOP ( Standard Operating Procedure) & KPI (Key Performance Indicators) . Yogyakarta: Penerbit Quadrat.

Gaya MLA

D.F.,M.Psi, Fajar, Nur'aini. "Panduan lengkap menyusun SOP ( Standard Operating Procedure) & KPI (Key Performance Indicators)". Yogyakarta: Penerbit Quadrat, 2019. Text.