Gaya APA
Arif, M.
(2017).
Pemodelan Sistem
(
1,Cet.2)
.
Yogyakarta:
Deepublish.
Gaya MLA
Arif, Muhammad.
"Pemodelan Sistem".
1,Cet.2
Yogyakarta:
Deepublish,
2017.
Text.