Gaya APA
Tambunan, M, R.
(2013).
Standard Operating Procedures (SOP)
(
Edisi 2)
.
:
MAIESTAS PUBLISHING.
Gaya MLA
Tambunan, M, Rudi.
"Standard Operating Procedures (SOP)".
Edisi 2
:
MAIESTAS PUBLISHING,
2013.
Buku Teks.