Gaya APA
Ekotama, S.
(2013).
Cara Mudah Bikin Standartd Operating Procedure
.
YOGYAKARTA:
media presindo.
Gaya MLA
Ekotama, Suryono.
"Cara Mudah Bikin Standartd Operating Procedure".
YOGYAKARTA:
media presindo,
2013.
Text.