Gaya APA
Tathagati, A. (2018).
Step by step membuat SOP Standard Operating Procedure (Cet.3).
Yogyakarta:
Efata Publishing.
Gaya MLA
Tathagati, Arini.
"Step by step membuat SOP Standard Operating Procedure".
Cet.3
Yogyakarta:
Efata Publishing,
2018.
Text.