Gaya APA

JAJULI, S, M. (2016). Ekonomi Islam Umar bin Khattab (Ed.1). YOGYAKARTA: Deepublish.

Gaya MLA

JAJULI, Sulaeman, M. "Ekonomi Islam Umar bin Khattab". Ed.1 YOGYAKARTA: Deepublish, 2016. Fak. Ekonomi.