Gaya APA
Una, S. et al (2018).
Economic English Instructional Material Based On Shariah Economy System (1).
Yogyakarta:
DEEPUBLISH.
Gaya MLA
Una, Syamsul. et al.
"Economic English Instructional Material Based On Shariah Economy System".
1
Yogyakarta:
DEEPUBLISH,
2018.
Text.