Gaya APA
Rukun, K., Hayadi, H.
(2017).
Sistem Informasi Berbasis Expert System
.
Yogyakarta:
Deepublish.
Gaya MLA
Rukun, Kasman., Hayadi, Herawan.
"Sistem Informasi Berbasis Expert System".
Yogyakarta:
Deepublish,
2017.
Text.