Gaya APA

Tathagati, A., II.Zaki, I, , , . (2017). Step by Step membuat SOP = Standard Operating procedure (cet.2). S.L: Efata Publishing.

Gaya MLA

Tathagati, Arini., II.Zaki, I.j, , , . "Step by Step membuat SOP = Standard Operating procedure". cet.2 S.L: Efata Publishing, 2017. Text.