Gaya APA

Abdurrahman, F. (). The Great of two Umars : kisah hidup dua khalifah paling legendaris : Umar ibn al-Khathab dan Umar Ibn Abdul Aziz (Cet. 1). Jakarta: Zaman.

Gaya MLA

Abdurrahman, Fuad. "The Great of two Umars : kisah hidup dua khalifah paling legendaris : Umar ibn al-Khathab dan Umar Ibn Abdul Aziz". Cet. 1 Jakarta: Zaman, . Text.